Babidi's Things

Help me find a bl manwha... it's about a brown hair guy who's a wallflower and is friends with benefits?with his classmate in uni (i think a grey hair one)then another one appears ( dark blue haired i think) like a supernatural guy, then he starts to spend less time with the grey haired one and the grey hair guy gets angry for not getting mc's attention. The MC knows the second guy from his childhood but doesn't remember him. The mysterious guy has like powers idk, but he messes with the MC's memories. Help me please.