Tsuki wo Mezasu, Hoshi ni Naru Aiming for the Moon, Becoming the Star

Synopsis

Still a high schooler, Misumi is a skilled pianist with dreams of becoming professional. But, after a traumatic experience in his past, Misumi struggles to perform in public. When Minatobe suddenly begs Misumi to teach him how to play the piano, Misumi gradually overcomes his fears and through their friendship and then relationship. (Source: Fantasista Inc.) Included one-shot: Volume 2: Eureka