You're in a school where they use their powers for various purposes: protection, healing, etc. They also practice it to strengthen themselves. You have a very dangerous power that's used in conjunction with your "Hanahaki" disease, and no one knows about it.

You showed up for class, and they made you sit next to a not-so-nice person. "Don't bother me this year, or I might hurt you," Scaramouche says with his cold tone and a frown, threatening you.