RainbowNeko's manga / #Love At First Sight(2)

MC is a salaryman who is pretending to be a high school student. He’s noticed one of the teachers at the school watches him very closely. One night he goes out to a bar and the teacher is there. They end up going to a hotel where the teacher confesses he’s like him for a long time.

off the street but a guy, Shiino, at a different bar steals them away. Shiino admits they met a while ago when he was drunk and says he took the job trying to get close to Yamabuchi. Yamabuchi becomes the manager of another bar and has Shiino come work with him. They awkwardly start dating. Second story is about his non-cute stern co-worker :3