Esper manhwa help!

i forgot the title of the manhwa i was reading but here’s the gist of it: the esper is cold to his guide until he loses his memory in an accident. all he remembers now is the memories he had at 19? 20? yrs old (maybe 7 yrs ago from the current timeline). now he’s more friendly and CLINGY, a little childish. they only did guiding through holding hands before but now they do it through sex too.

some extra details: there’s this concept of freelance guiding in this universe and that’s what the guide does. the esper was s-tier but he’s now back to f.