I don't remember the name the stalker was a cleaner? Does someone remember? I think it was manhwa but not sure
https://www.mangago.me/read-manga/otte_otte_koi_o_shite/
Found it- https://www.mangago.me/read-manga/stalker_s_game/
I don't remember the name the stalker was a cleaner? Does someone remember? I think it was manhwa but not sure