Woah this sounds super interesting, I wanna read it (ᗒᗩᗕ)
Dang that turned dark real fast
The story you're looking for is part of a collection of series found under this
https://www.mangago.me/read-manga/my_god/
Man thank you so much (≧∀≦)
There's another super interesting story too called to the sea by amada nemui
It's a BL about a guy who comes into his apartment and finds out a flower (I think is a flower?) He brought at the side of the road turn into a man. He and the flower guy lives for a few days but the flower guy ends up dying I think? But the other guy wakes up and (I think he sees it all was a dream i can't remember) but he remembers the face of flower guy is equal the face of a flowershop guy. The story ends up being the flowershop guy was dead in the flowershop for days and nobody found him and the apartment guy finds his body