Ichbin's activites

I've read an ongoing bl and I don't remember the name.
The plot is like this:
-MC has a crush on ML since high school (for ~13 yrs)
-ML asks MC to move in together. MC confesses that he is gay but the ML is unbothered.
-they move in together. after some time they sleep together (it all starts with a bj, full on hankey pankey on a later chapter)

PLEASE HELP ME FIND THIS (T - T)

Seon-woo has an ordinary life with an okay job in an okay company. There’s only one thing that...