From Day of the River:

An unhealthy obsession with boys' hands, voices, and other things. Protagonist Mizuhara Hiyori has a difficult-to-explain fetish. In order to live a peaceful life, she hides her fetish away from the world and entered Blue Star Academy. There, she meets Narita Naohisa, a beautiful boy who discovers her fetish one day at school. How? Because he possesses all of the lovely qualities that Hiyori fetishizes! However, Narita-kun turns out to be a rather troublesome teenager...