I'm pretty sure it was a one shot about a salaryman who was resting at the entrance of a laundry shop (or it was an building? IDK). He then started remember about his dead colleague, who was very friendly and help him be more open with everyone else, since the MC was shy. Also, I think, the memory of his colleague appears and talks with him, kinda like a ghost, but I'm not so sure. It ends with the MC accepting the reality and leaving. It was bittersweet and it had BL undertones but I can't remember if it was labeled as such. Also, I think it was in part of an anthology. Please I will be so happy if someone can help me（/TДT)/
The story was hot but I didn't like Shirotani's father. He was sleeping with a school girl, even though he was way older and also his teacher. And they make it seem like the girl was a bitch (she kinda is towards little Shiro but YK, traumatized kids often traumatize younger kids, she was very obvious groomed and looking for approval) but never adressed the grooming his father inflicted towards her. Like she is annoying but he is a predator and that is way worst. Or how she is old now and never found any sort of justice but everything is ok because she still is a bitch. And at the end, Shiro contacts his father again after many years in this scene that is supposed to be emotional (?), as if nothing happened, as if he wasn't sleeping with a minor, as if the past didn't matter. IDK feels kinda simplistic and gross...
Like you can have mature themes in your manga, but at least be consistent FFS
Hey! IDK Maybe don't leave alone the already bullied boy and communicate with him in a healthy way. You know, so he doesn't get extremely guilty, depressed and gets more traumatized and lonely.