@Kendama: he's still in High School. Human Brain evelops and it's mostly not stuck at one point. With a better environement, he matures and can overcome his struggles.
I think a Happy End is still possible, but it's not safe.
tf?! be grateful that you can read manga chapters for free! on mangaDex.
And be grateful that there are Scanlators who provide translated chapters.
Or can u read chinese? I don't think so.