What should a brother do if he walks in on his sister masturbating? He might never have thought about it before, but the moment it actually happens, his mind goes blank—and before he knows it, he's doing perverted things to his sister. When caught in such a situation, all he can do is convince himself it's okay, telling himself it's sex education. The story unfolds in a way that makes you question what you would do, how you should act. It's a realistic portrayal of inner conflict and dilemmas, as if asking your younger self how you'd react.