Hatachi Sugireba Ore no Mono

This was meant to be the time for drinking and enjoying uni life! Thought Akito...who was hoping on his 20th birthday to finally nab the girl he'd been eyeing up and have a wonderful night of passion. However...the next morning he woke up in a stranger's room on a stranger's bed...!! A story about the blossoming bond between a romantic obsessive X a loose straight guy.

(Source: Nihon Bungeisha, translated)