Isnt the one namu bumped into the guy who betrayed haedam?

Nope another guy
I think it's the one that threw the basketball near hoon when he was a kid

I thought so too!! But he has flowers dosnt that mean he's graduating? Same year?? Etc I mean he could be there for younger sibling..who knows~ but I hope!

I think those flowers are for someone else graduating

Yeah, cause he looks older which almost made me think he was a teacher in that school.