Silver

From Chibi Manga:

During the prefecture tournament competition, in the midst of the cheering in the gymnasium, the scream of Aoba who collapsed echoed through it. Aoba, who was terribly injured who only lived life as an athlete went into despair. In the midst of that, a classmate, Gin, who is a little strange, nominated Aoba as a volleyball member for the ball tournament. “I want to play with you”… is how the two of them met and now, they are discovering the reason why them met and the real love. A sweet and painful, miraculous pure love story