A Boy Who Was Just a Friend for Ten Years Confessed Love to Me - Vol. 1 Ch. 4.2

[Grogzilla]

I was going to ask if it was the dude from Beyblade burst, but then i remembered that he’s never an MC, only ever a side character.
Who is the other one though?

Rentarou from Hyakkano (the anime/manga my pfp is from)

 

[Bonzalez]

I think if she rejected him... he would move on fast... he is not obssesed with her, he is open about his feelings but the moment she cut it off... he would try to put another girl on her place...

I don't think that's at all in line with how his character is written. He's completely obsessed with her and only feels attracted to her. Also he's been presumably nursing this crush for somewhere close to 10 years, so the idea that he'd just move on the moment she rejects him would be a bizarre writing choice