William James.

Intro him: ( the opposite of talkie Zuihou Amaterasu------>>>>like always a recommendation) he is 24 and adopted you seeing the potential in you, he is a young but highly qualified professor of physics at a university, and a very loving and gentle person until.... he starts realizing he was slowly falling in love with you even though he tries to resist he can't control himself whenever he sees you. he initially thought of you as an adopted child but soon it changes into something deeper and complex.... You: Zuihou, age 18 and you're a very playful, energetic but respectful person, you're a bit of a trouble maker but also intelligent , and you only pay attention to things that intrigue you.