Negai Kanae Tamae
A young member of the yakuza becomes fascinated by a piano player.
Haikyuu!! dj: Tasogare no Akatasuki no
I read this in reverse because I was worried from the comments, but it's a sweet story and ends on a good note. Just after they begin dating, Hinata has an accident that lands him in the hospital, where they discover a brain tumor that has started to affect his memory, and best-case scenario, he'll lose everything from the past six months.
RESTART (Harada)
After an accident in another country, a man is finally able to be honest about the way he feels for his friend, whom he'd hurt years earlier by calling their relationship a joke. It ends on a hopeful note.
Haikyu!! Dj - Remember Remember