@Angel Im not sure if this is whats going on but this is what i think is happening the white haired guy loves the man his mom used to date i think they were just dating but the mom died so the man dating her the guy the ML calls his dad started taking care of her son after his death and he developed feeling for him.The old man might be his actual dad the mom probably got pregnant to the Old man. So just to summarize
-White haired guy-likes his stepfather
-The guy that the white haired guy likes-is his stepfather
-Old man is-his real father
Hope this helped lol and again IM NOT COMPLETLY SURE THATS JUST WHAT I THINK ALL THIS IS
-White haired guy-likes his stepfather
-The guy that the white haired guy likes-is his stepfather
-Old man is-his real father
Hope this helped lol and again IM NOT COMPLETLY SURE THATS JUST WHAT I THINK ALL THIS IS