This is a video that those who believe in male-female friendship can exist should definitely watch. The relationship between Sayu-chan (22) and Yusuke-kun (22) collapses due to sex, and instead merges and warps. Please witness that process. It's a documentary that eventually develops into creampie sex, with a volume of about 3 hours. The emotional shifts and changes in the distance between the two are also highlights. Taking everything together, I felt it was incredibly erotic.