Agreed, If Kusaka Junior actually had a reason it would had been more tolerable, or at least it could had played in with the theme of the show. Motivating and mentoring sort of thing. Maybe we can watch him change together with Asumu. But nope, Inoue here makes him a total dick for no reason other than him having a gigantic ego, oh and make him stalk Akira too. I can't stand even 1 second of his screen time. What makes things worse for me is that his facial features actually resembles the face of someone I knew.
I think he did apologized to Asumu, yeah, the second episode since his appearance, but meh. That's bullshit. It's like, the previous writers made an inspiration and motivational piece of work while keeping it a good blend between dark and happy, then Inoue comes his jolly way and say "Trolololololol let's make this all gloom and dark!11"
Kinda makes me wonder if Inoue can even write anything that's not depressing or tries too hard to be dark, or if he had some serious **** happened to him as a kid.
The love letter arc was amazingly hard to sit through I might add. The Shuki arc wasn't so bad, but...where the hell has Katsumi's father been? Did the actor get sick or something? I kinda miss him, ever since Inoue came by he's been sitting at the bench.
Then again, I'm at episode 38 right now, and I did laugh a tiny bit when Kusaka Junior ran away shivering. I'll never be able to live with him being an Oni instead of Asumu.