Heaven's Bookstore 2004 ( 5.3)

Kenta, a young pianist who has just lost his job, is drowning his woes at a bar, when he meets a man in a Hawaiian shirt named Yamaki. He invites Kenta to work with him, and the next thing he knows, Kenta wakes up to find himself in a room he has never been in before. It is a strange room that seems to have no connection to life. He descends a staircase to find many shelves of books.

I Am a Pervert 2016 ( 1)

A guy spends an extra year studying for college entrance exams but ends up at a second-rate university, and becomes a musician after randomly getting involved with a misguided university rock ‘n roll club. Eventually the guy gets married, has a child, and builds an ordinary life for himself, but he hasn’t been able to break off his college romance with Kaoruko, his S&M dominatrix. When he and Kaoruko go off to one especially shitty gig, existential angst erupts and the trajectory of weirdness goes parabolic.

Hentaidan 2015