lol: After being blessed by the Happy Demon, I became the harem king

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lol: After being blessed by the Happy Demon, I became the Harem King Author: He Renyin

Summary:

Tragic news has arrived from Runeterra: the female heroes have all ascended to the planet of happiness.

The Devil of Joy bestows his blessing, granting Fahn the power to summon wind and rain and control lightning. In Zaun, he encounters a monster of unparalleled strength. Jinx fights with all her might but is powerless against it; a single injection causes her blood to thicken like petroleum jelly, her heart pounding and her eyes sparkling with hearts.

Piltover, enraged, launched a righteous attack, but Caitlyn betrayed them by drinking a dose of euphoria. Dopamine connected her nerves, causing her to go into overdrive and lose control on the spot. The product was too pure and the effect too strong, leaving her weak and ate a train-style bento in a small room.

Noxus was amazed and secretly learned the formula for the powerful drug. However, the experiment by the foolish beauty resulted in an accident where the pleasure factor spread like a plague, and the entire country was affected without exception. Meanwhile, the Katarina sisters enjoyed a blissful life.

Out of curiosity, Lux accidentally fell into the trap, transforming into a Demacian water sprite. She dragged Fiora into her life, insisting on being her sister, and enthusiastically recommended the idea to Sona, then pulled her underwater in the bright sunshine—you're the next one to be dragged down!

Freljord unified the ice plains, and the three sisters joined forces to fight the demons. Their unity was invincible, but unfortunately, Fane's power was too great, so they temporarily retreated and suffered a crushing defeat, leaving them with nothing but sacrifice.

Ionia used gentleness to overcome strength, and Venerable Karma offered himself to the tiger. Irelia did not believe her senior brother's actions. After a fierce battle, she overwhelmed the seven armies, and collapsed, shouting that she was invincible... (remaining word limit).

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The Zaun arc includes some elements of governance, but at the end of the Zaun arc, it transitions into a pure harem fantasy adventure.

1. The Happy Demon Osiris

"What the hell is Nera doing here?"

On a rainy night, looking up from the alchemical waste, Faen struggled to get up from the sewer with a hint of disgust.

He was about 1.95 meters tall, with a robust and muscular build. He wore a sleeveless short-sleeved shirt, and his face was chiseled with a strong and vigorous look. His muscular build was exposed to the air, and his right palm was imprinted with an abstract seven-armed mantra, giving him a feeling of vitality.

As a transmigrator from Earth, Fahn knew long ago that he had arrived in Runeterra, the setting of League of Legends' lore. Luckily, his spawn point was in Ionia. But Fahn dared not relax for a moment—Noxus, the Celestials, the Darkin, the World Runes—there were too many troubles ahead!

What can Farn say in the face of these pressures from the future?

If you're bad at the game, practice more. If you can't handle losing, don't live.

So Faen began to learn war dance—similar to the fighting style of Irelia and Rakan. Though called dance, in Ionian art, beauty and lethality were synonymous.

Later, Farn went to sea to study, but before he had even set off, a sea serpent that was hoarding ships attacked his small boat.

The appearance of these massive sea monsters, often tens or even hundreds of meters in size, signifies a maritime disaster every time they appear.

Although Fane was confident in his abilities, facing such a behemoth on the sea... well, there was nothing to say. It felt like you'd just learned to throw a punch, and then Tyson, cloaked and grinning, walked towards you, then, sensing your fear, laughed and said, "Don't worry, I'm your referee! Your opponent is... Ultraman Taro from Nebula M78!"

He was eaten, but fortunately, the space inside the sea serpent's belly was large enough that Farn managed to survive for a few days thanks to the supplies inside.

On the seventh day, a woman saved Farn—a woman with a peculiar smile always on her face. She fought the sea serpent, the dazzling water in her hands transforming into a flying whip-sword, and she raced across the shimmering sea, cutting the hundred-meter-long barge-holding sea serpent into pieces with her water blades in just a few breaths.

Fane knew that woman—Nera, a nerdy girl who made a deal with the happy demon Osiris to forget her past and become a hero who would go down in history.

The so-called demons are a group of beings born from the spiritual realm. They live within the emotions of all life on Runeterra and feed on the emotions of all things.

Pain, confusion, hatred, agony, nightmares... every emotion has a corresponding demon. And the oldest of these are the demons hatched from the ten fundamental emotions.

Osiris, the Devil of Joy, as his name suggests, was born from the oldest and first joy of all things.

After killing the sea serpent, Nera, whose mind had become abnormal due to her deal with the demon, also discovered Fan.

Nera wanted to send Fan away, but Osilesh became extremely interested in Fan during the process, which led to a dispute between the two. During the dispute, the shockwaves from the energy impact knocked Fan unconscious. After drifting unconscious for a while, Fan was swept into a sewage pipe, his vision went black, and when he came to his senses, he found himself here...

Now, looking at the seven-handed curse mark on his palm, Faen was initially puzzled, but after sensing it for a moment, a look of solemnity and helplessness appeared on his face.

It was clear that Osiris had sensed the difference in Fane's soul, which intrigued him greatly—especially now that Osiris had just returned to the real world, and Nera, a warrior obsessed with hunting monsters, couldn't provide the diverse 'pleasure' Osiris craved. So now Osiris reserved his power for Nera, while giving Fane the ability to consume 'pleasure'…

It was both a curse and a blessing. Because the power originating from the Root Demon greatly enhanced both the upper and lower limits of Fane's potential.

According to Fan's conservative estimate, his strength, stamina, agility, endurance, and bone strength have increased more than fivefold. In addition, Fan has gained the power to manipulate and bestow pleasure, and the power to control flowing water for his own use...

However, as a price, Farn himself experiences intense pleasure and needs to create, feel, and nurture more pleasure in order to alleviate the discomfort that this pleasure brings.

And this kind of pleasurable discomfort...

Take playing games as an example: you need preparation, skill, strategy, tension, and victory before you can experience intense joy and satisfaction. The "joy curse," however, brings joy by skipping all the preceding processes. This kind of pleasure without cause creates a profound emptiness…

Even now, with his clothes barely covering him, Fane already felt a strange pleasure and urge coursing through his body. This inexplicable pleasure made him desperately want to do something. At first, Fane tried to resist, but he soon discovered that the pain of his nails digging into his flesh when he clenched his fists was just as satisfying…

Seriously? Self-harm counts?

Are you the Devil of Pleasure or the Devil of Slaanesh?!

Thinking to himself, Farn realized that he had to do something to alleviate this pleasure.

The problem is that the environment here is too harsh.

Regaining his composure, Fain climbed out of the sewage pipes and quickly realized that he was in Zaun, on the continent of Valoran—nowhere else in Runeterra had this kind of acidic rain, toxic fog, and alchemical waste liquid scattered throughout the streets and alleys.

Looking up, in the night, Zaun lies nestled between winding ravines and rugged cliffs. All around are overlapping mountains, with corroded and aged exhaust pipes clinging to them. In the distance, the roar of a gold refinery echoes, and various toxic wastes leak through numerous dilapidated pipes.

Not only is the environment appalling, but the pedestrians here are also ragged and hurried. The dilapidated alchemical prosthetics workers borrow money from factory owners to buy equipment, working desperately just to support their families, but a large portion of their wages goes towards loan repayments. The crude breathing filters produce severe noise with every operation, making one doubt whether they can actually filter out the toxic components in the air.

Fane noticed the watchful eyes that could be seen from all around the streets. However, Fane didn't pay much attention to them, as he didn't perceive any threat from them.

Just as Fain was pondering what to do, a sudden booming sound came from the alleyway beside him, accompanied by the roar of gunfire. Pedestrians on the street quickly took cover in houses and slammed their doors shut. From the direction the sound came from, Fain saw fluorescent green sparks and arcs of electricity flying wildly, illuminating the rain curtain into a neon-lit cloud—

Electricity crackled beneath her feet, and her two small green braids emitted yellow-green arcs of light in the night sky, fueled by the abundant electrical energy. Clad in an electric armor and wielding a rudimentary spark gun, Zeli swiftly traversed the complex alleyways. Her abdomen was stained with blood from a severe blow, and her once-smooth face was now covered in grime and scratches, her expression filled with a solemn and veiled fear.

"Give up, you fool! The Alchemist Baron has put a huge bounty on your head!"

With his body heavily modified by alchemical prosthetics, the giant-like man only retains his original head, while his entire body has been transformed into a four-meter-tall alchemical prosthetic body, like a ferocious beast that can smash an iron house to pieces with a single blow.

"You can't escape! Hahaha! Your head belongs to me, Zarenk the Crusher!!"

Before Zarenk's voice could even finish, a slightly surprised voice came from the other side of the street.

"Zeli?!"

"Um?!"

Upon hearing this, Zeli looked up in alarm, only to find a tall man staring at her with delight at the alleyway exit, as if he had met an old acquaintance in a strange city—but Zeli did not remember ever seeing the man before her.

Caught between a rock and a hard place... What kind of luck is this? Committing a crime in the rain, only to run into two bounty hunters?! And one after the other, leaving me with nowhere to escape?!

"Huh?! Fellow travelers!" Zarenk noticed Faen and his eyes hardened. Then, the liquid tank on his back bubbled and a large amount of high-purity luminous compound was transported through the solution pipes to the prosthetic body's alchemical engine, producing a loud hum.

"You dare steal my prey, you wretch Zarenk?! I'll kill you too!!!"

With a roar, Zarenk's massive alchemical body increased its speed once again, and he almost became a blur, crushing towards Zeli and Fane like a siege engine.

As she felt the fierce wind rushing from behind, a look of despair flashed in Zeli's eyes.

If Farn hadn't appeared at the alley's exit, she would have been confident enough to unleash the electricity stored in her wire armor and accelerate her way out. But now, she was surrounded by enemies...

Suddenly appearing at the end of the alley in Zeli's line of sight, Fain had already lowered his center of gravity, the murky raindrops splashing into broken droplets on his solid flesh. Having grown up on the streets of Zaun, Zeli could feel the surging power within Fain. In desperation, Zeli didn't care about anything else and unleashed all her stored energy, charging towards Fain with a desperate, all-or-nothing shout.

Similarly, focusing his attention on the bounty hunter behind Zeli, Fain's gaze was filled with solemnity, as well as an unrestrained joy that he could never completely suppress, no matter how hard he tried to control it.

"Control one evil, and all the rest will be exterminated!"

As the seven-handed incantation on his palm glowed with a dull arc of light, Fain could clearly sense the direction of every drop of water in this rainy night. It wasn't magical manipulation, but an innate power. As natural as breathing, it required no conscious control, just an unconscious association... With a flick of his hand, the surrounding water curtain froze for a moment, as if receiving a command.

He turned his hand over, and the rain curtain reversed.

As the stagnant water droplets poured down, they became incredibly thick. In that instant, Zeli felt as if she had fallen into a ditch. Not to mention sprinting, even running became extremely difficult in the thick, condensed rain curtain.

Dying?

Zeli subconsciously thought, looking at the rapidly approaching afterimage in the murky water, Zeli could only grit her teeth in silence, and then desperately pulled the trigger in front of her.

But submerged in water, the homemade spark gun only flashed a few arcs of electricity before becoming ineffective. In despair, Zeli, who was preparing herself for death as much as possible, saw that figure rush straight past her—huh?

A hint of doubt flickered in her eyes. But before Zeli could remain puzzled for long, the aftershocks of Fain's charge through the water curtain hit her in the face like a heavy hammer blow, and the little girl fell asleep instantly.

Meanwhile, before the guy who called himself Zarenk could even react, Fan, who was accelerating through the power of Osiris within the water curtain, had already arrived in front of him.

In the instant of close approach, his left foot slammed into the ground, the heavy force creating spiderweb-like cracks. His right arm stretched back, and in the instant of the swing, the curtain of water behind him seemed to come alive, completely wrapping around Farn's arm, like liquid muscle exploding—BOOM!!!

With a single punch, the water clinging to Fain's arm exploded violently. While dissipating the recoil, Zarenk, nearly four meters tall, standing in front of Fain, was instantly reduced to flying fragments. Broken organs mixed with shards of the alchemical prosthetic body scattered across the ground, and filthy rain poured down, quickly diluting and thinning the blood and luminous potion that had splashed onto the ground…

Staring at the corpse before him, Fane remained silent for a moment before straightening up and looking down at his right arm—this was Fane's first murder. Fane could feel a slight unease and unease the instant he realized reality. But before he could fully process this feeling, it was transformed into joy under Ausilex's blessing…

It's hard to say whether it's good or bad. If one becomes addicted, Runeterra might just produce a serial killer driven by mere interest? But as for Fain...

It felt pretty good; the chaotic joy was effectively replenished, which gave Faen a slight sense of satisfaction.

After stretching his body and feeling the abundant power within, even Faen couldn't help but sigh. Runeterra truly lived up to its reputation as a place where 'runes' were practically etched on their faces. Mages were awesome, warriors were just low. He had painstakingly studied war dance for over a decade at the Presidium Academy, and what was the result? A single blessing from Osiris, and a casual punch carried seventy years' worth of power, complete with flowing special effects. You couldn't argue with that.

No wonder that after obtaining the power of Osiris, Nera quickly killed the dragon progenitor Viper Mother of Kamavia, the shapeshifting demon Imag, and the mad demigod Nabafolicas... The original demons were indeed of the highest caliber.

Although he received the joy of Osiris and did not directly inherit Osiris's power, upon careful observation, Fane could sense that his power also increased accordingly the moment he felt joy...

Thinking to himself, Farn slapped his forehead—he almost forgot!

2. Happiness

Turning to look at the unconscious Zeli and the blood dripping from her abdomen, Fain realized he might need to find a sheltered place to help bandage her wounds.

Farn had a good impression of this young girl who wanted to fight for the workers' rights and resist the tyranny of the alchemist baron.

But having just arrived in Zaun, and being unfamiliar with the place and its people... Looking at Zeli, Fain unceremoniously reached out and groped around. Perhaps because of her street life, the seemingly skinny girl was actually quite well-proportioned; yoga pants would probably accentuate her curves.

Without searching too much, since Zeli was still bleeding, after finding the wallet, Faen headed towards a hotel in the distance.

Money makes the world go round—especially when it's not even your own money.

After booking a room, Faen took out some money to buy some basic medicine from the shop owner. Finally, under the numb and lifeless gaze of the shop owner, he carried Zeli upstairs to rest.

He cleaned the wound, applied medicine, and bandaged it. Afterward, Fain began to meditate, carefully recalling what he had gained from the battle and reflecting on what aspects of the process could be improved.

Having suddenly gained such immense power, Fane knew very well that if it weren't for his solid foundation honed over the past decade, allowing him to deflect the force by unleashing the water flow in time, he would have lost his arm the moment he shattered the bounty hunter—the force was too great, and the recoil was enough to break bones.

Meanwhile, Zeli was running, running, running. People were chasing her relentlessly. Suddenly, she lost her footing and sat bolt upright in bed—it was a nightmare!

And then—ah~!

Clutching her wounded abdomen, Zeli immediately let out a scream like a little bird.

"Awake?" Upon hearing Zeli's scream, Fain ended his meditation, opened his eyes, and looked at the girl, asking, "How are you feeling now? Is the injury on your stomach alright?"

"Uh?"

Hearing this, Zeli was stunned for a moment, then quickly recalled what had happened last night. Her face paled, and she subconsciously wanted to get up from the bed and run away. However, meeting Faen's gentle gaze, Zeli, with one foot already on the ground, hesitated and stopped in place, stammering, "Um...you didn't come to arrest me?"

"Why would I arrest you?" Farn shrugged. "I'm more puzzled as to why you shot at me when I came to help you, even though you couldn't have hit me even if the gun worked."

There are only a few heroes whose basic attacks can be dodged, and Zeli is one of them.

In response, Zeli said somewhat helplessly, "The situation was tense at the time, you know, I was being chased... Also, why did you help me? You even cleaned my wounds and applied medicine. Do we know each other?"

Zeli glanced down at the gauze on her lower abdomen, her gaze towards Faen filled with a hint of confusion.

Fane, on the other hand, said quite frankly, "I come from Ionia, and right now... I'm fighting for happiness."

"Fighting for happiness?" Upon hearing this, Zeli stared at Fain with some suspicion for a while.

Before the Noxian invasion, Ionia was undoubtedly the most beautiful paradise on earth in all of Runeterra. Growing up in a favorable environment, training and honing their skills, Fahn, aside from anything else, was absolutely stunning. His solid frame was broad, and his well-developed muscles displayed a streamlined shape that combined flexibility and explosive power. He had a handsome face and a neat, short haircut. Wearing a sleeveless, open-front shirt, his clearly defined muscles glowed with a rosy hue in the morning sunlight streaming through the window.

Before, a hint of gloom lingered in Fain's eyes due to his pessimism about the future. But now, blessed... or perhaps cursed by Osiris? Fain's eyes were filled with a vibrant and joyful energy.

In short, he's the kind of sunny young man that would absolutely never appear in a place like Zaun.

In response to Zeli's suspicion, Fain greeted her with a frank and radiant smile.

Fahn and Zeli weren't exactly close, and Zeli's description in both the main LoL game and the lore of the card game Legends of Runeterra (LoR) was very brief. But putting everything else aside, Zeli's willingness to fight bravely for the powerless people of Zaun was enough for Fahn to have a good impression of her.

Sensing this radiant smile that could never have originated in the depths of Zaun, Zeli scratched her head somewhat embarrassedly, then asked hesitantly, "So... what are you doing in Zaun? And what's the reason you said you're fighting for happiness?"

"That's a long story." Hearing this, Fan sighed helplessly, then asked, "Have you heard of Ausilex?"

"Osilesh? What's that?"

"That's an old story."

Seeing Zeli's blank expression, Fain sat cross-legged on the bed and said:

"Long, long ago, a demon with seven arms was born from the joy of people. Her name was Osiris, and she continually absorbed people's joy to create more. But slowly, her desire for joy grew stronger, and her threshold for joy kept rising. So Osiris looked towards the heavens, the realm of the gods, her desire growing ever stronger..."

Few know of Ossilash's existence, but it's hardly a secret. After all, demons aren't exactly rare in Runeterra, though they're certainly not uncommon. It's just that compared to Ossilash, most of these demons are of lower rank.

For example, Tahm Kench, Evelynn, etc.