
What's up with green haired guy!?! (Spoilers welcomed)

I'm not sure but I think that there is a problem between him and his father like he doesn't care about him and because of that you find him always trying to prove himself and acting like a cheerful boy but deep inside him there is a darkness. I think Tia will not end up with him as a couple but she will help with this matter
But no wonder he is just a high school kid lol
but isn’t he 26?
Yeah he’s 26