I am a brainwashing doctor, and my sister is a magical girl.

Chapter 56 Xingyin: I've decided to entrust the rest of my life to this man.

Just half an hour ago. In the ward.

Sayo Natsuka: "My plan is to create an accident, increase physical contact, and let my senior experience my soft, well-developed body~ This is the first step we need to take~~"

Xingyin: "Um, doesn't that sound a bit... inappropriate?"

Xiaoye Natsuka: "I also want my sister to influence our senior with her inner beauty. But..."

Well, what I mean is, men of this age are like wild beasts running rampant in the cosmos. This tactic is the most effective.

After we win over the senior, we can slowly show him our good qualities.

Love is something that starts with being attracted by a beautiful appearance, blossoms through shared experiences, and then deepens gradually. It's perfectly normal, nothing to be embarrassed about.

"What you said... seems to make some sense..." Xingyin frowned, and was thus persuaded by her sister.

The key point wasn't that Xia Hua's words made a lot of sense, but that they touched a chord with me.

She's going to bully the doctor too! She's going to make him shed tears of regret!

……

Rewind half an hour, and Xia Hua was earnestly offering advice to her older sister:

"Plan A: The girl with bread around the corner—you've probably seen this classic scene before, right?"

Xingyin: "I've seen it before, but it's so outdated! It's the 23rd century."

Xia Hua: "Then, sister, is there any other way?"

"Should I just say it directly, to repay my senior, I'll offer myself to him? Go to a hot spring inn and make it a done deal, then change into my final swimsuit at the beach? Or should I just call him to the promised cherry blossom tree and confess my feelings?"

Xingyin: "Why are they all comic book scenes?"

Xia Hua: "Sister, your character can be a Yamato Nadeshiko, a childhood friend, or even a tsundere."

But absolutely not the tsukkomi (straight manga character). In any romance manga, the tsukkomi character never wins. They'll only end up as a pathetic comedic character.

Hearing her younger sister say something incredibly serious, Xingyin couldn't help but swallow hard. Then she gave a serious "Mmm."

Although she felt that her younger sister was the one playing the comedic role, she didn't have any good ideas. The only person she could discuss things with was Natsuka... so she decided to give it a try.

It's never a bad thing to give it a try.

Surely it won't have the opposite effect and cause Lin Xuanyi's favorability towards me to decrease?

As she thought this, she ate a can of coffee she had gotten from the vending machine and waited around the corner for her prey.

……

Time passed. Returning to the present, Lin Xuanyi sensed a strong killing intent at the corner of the corridor.

As for why he was able to sense it, it's because of his level 2 electromagnetic superpower.

Biomagnetic field sensing, kid, that's much more useful than infrared.

Under these circumstances, the doctor would naturally not continue.

……

"How strange. I could clearly sense the Doctor's presence and hear footsteps. What are they doing? Why did they suddenly stop?"

Xingyin, with a coffee can in his mouth, stood suspiciously at the corner of the corridor.

Her and her sister's first plan was to make a scene at the face wash. They wanted to use a tricky angle to thoroughly slap Lin Xuanyi and her specific areas, letting the professor know the allure of a youthful and beautiful JK (high school girl) student.

Given the height difference between the two, this would be extremely difficult. However, for a magical girl, this pose is a piece of cake.

Even if Xingyin didn't undergo a magical transformation and her strength was only one ten-thousandth of her magical girl form, or even less, she would still be able to deal with the helpless Doctor without any problem.

So now, the only problem is that Lin Xuanyi won't take the bait.

"So, should I go in now, charge straight in? Okay, let's go for it, Doctor, get out of the way—wait, what?"

Despite sensing the Doctor's presence, Xingyin rushed out with a coffee can in her mouth, only to find nothing.

The corridor was deserted. Then, she heard a soft thud behind her, followed by the doctor's cold voice:

"What are you doing?"

……

It's the electromagnetic spider step!

It's not traditional martial arts or some strange assassination technique, but rather a terrifying move that relies on magnetic attraction to allow the villainous doctor to defy gravity and walk on the ceiling.

This is a new ability he developed after his superpower was upgraded to level 2.

When Xingyin deliberately dribbled the ball and bumped into someone, he had already walked along the wall to the ceiling, and then landed lightly behind Xingyin, startling Xingyin in the process.

Xingyin: "!"

The bread-carrying tactic failed! If they try to force their way in now, the professor will just see it as harassment and give them a good scolding. In that case, they'll be the ones who suffer.

Xingyin instantly understood and gave a weak, ingratiating smile: "I want to have coffee with the Doctor, so..."

"By carrying it in your mouth?"

"It looks cuter this way~"

"...How is my sister?"

For his sister's sake, the evil doctor decided not to stoop to Star Silver's level.

"I'm already asleep. Although I'm much better after treatment, I'm still very weak," she replied.

Lin Xuanyi: "She seems quite lively. Her recovery speed might be faster than we thought."

"I hope so."

They chatted as they walked towards the door.

Now that my sister is asleep, the visit is over. It's almost time to go home.

The conversation between the two was still related to his sister. After all, Lin Xuanyi also had a sister.

The professor spoke with undisguised pride about his younger sister, believing her to be exceptionally talented and the best in the world.

He had expected Xingyin to argue with him, saying something like, "My sister is the best in the world." But she didn't. Instead, she showed an expression of agreement.

The doctor paused for a moment, then realized: "By the way, you and A-Yue are quite close?"

"That's true." Xingyin's tone was tinged with resentment as she said this:

"Mutsuki and I are very good friends. And I also think that Mutsuki is a very good kid."

So, senior, how does it feel to turn your sister's best friend into your slave?

Lin Xuanyi had indeed heard his sister mention the name Xiaoye Haruna. And he confirmed her identity immediately after obtaining Xiaoye Haruna's student ID.

However, this did not prevent Lin Xuanyi from shaping Xiaoye Chunna into the way he liked.

Hearing her say that, the evil doctor's lips curled up into a pleasant smile: "To be honest, it's pretty good."

Xingyin: "Eh..."

After their relationship became closer, even the trembling magical girl dared to joke and laugh with the evil doctor.

Lin Xuanyi: "Don't be so petty. Look forward. Overall, isn't it enough that this matter ended well?"

……

Xingyin gained money and high-level treatment for her younger sister. Lin Xuanyi acquired a useful dark magical girl. The younger sisters also found their own happiness. Even Tokyo became safer due to the collapse of an evil organization. Calling it a happy ending wouldn't be a problem.

Of course, it would be even better if it could be even happier.

This was not just her sister's encouragement, but also her own decision.

Sayo Haruna, Natsuka's older sister, Mutsuki's best friend, an unsuccessful magical girl, a corrupted and fallen female executive, a high school girl in love, a death knight, darkness, magic, and star silver—thinking all this, she took a deep breath, mustered her courage, stepped forward, and hugged Lin Xuanyi's arm like a clingy little animal. Without causing any accidents, she directly and proactively approached, closer and closer, until finally she was pressed against Lin Xuanyi's body: "Thank you, Doctor."

This was the first time she had taken the initiative to thank Lin Xuan.

Lin Xuanyi: "Oh..."

The Evil Doctor made a slightly surprised sound, but he did not object, nor did he intend to throw Star Silver away.

He essentially acquiesced to the magical girl's somewhat overstepping boundaries. Occasionally, he had to give her a little something in return.

Perhaps at this moment, the leader of the evil organization unleashed a chilling killing intent, while the female assistant, witnessing this scene through the monitoring satellite, uttered a dissatisfied "Eh?", while the little devil beside her felt extremely excited. And a certain eight-tailed fox gritted its teeth, feeling this was unfair, and prepared to continue causing trouble.

But it doesn't matter anymore.

Those are things we should consider later.

At this moment, the boy and girl only need to enjoy the warmth, happiness, and the fleeting spring.

It's autumn, but for some reason it feels like spring has arrived.

If only I had a little more courage, I could have pressed myself against the evil doctor's cheek and kissed him.

But I was too shy, so I didn't dare.

Maybe next time. Next time, I'll definitely be able to convey all my feelings to my beloved professor.

It was autumn of 2202, in the Sixth New Tokyo, and the magical girl Hoshigami smiled happily.

At that moment, Xingyin made up her mind to entrust the rest of her life to the man in front of her.

……

End of this volume