First of all, don't watch it if you're sensible or can't or if you can't stand erotic things. Not your typical BL. It's something deeper ...

Advice: WATCH IT ALONE WITH HEADPHONES.

So...
I actually enjoyed it. I had to re-watch it multiple times to understand everything that was going on. (I couldn't concentrate the first time?)
That Makoto just wanted to kill himself, and luckily Ryoji saw him and saved him.
Everything that he did was to mostly help him.
In the end Ryoji wanted to end his life, but Makoto arrived then.
Yeah, it may be Stockholm syndrome, but I think he really liked him for who he really was after learning about his actions towards him.

The cast, in my opinion, was wonderful. They are hot, of course, but to make such a movie, it may be really challenging. So I really appreciate them for their amazing acting and everything. ?

Yes. I'll surely re-watch it.