Sakura no Uta: The Tear Flows Because of Tenderness.

Kusanagi Naoya lost his mother when he was young. With his father, a painter who traveled the world, often away, the only support Naoya had was from his friend, Misakura Rin. Sadly, she moved away during their elementary school years. Now in high school, Naoya, colder and more hardened, is grappling with the recent death of his father. Just as things seem to be worsening for Naoya, who already struggles to connect with others, a new transfer student joins his class... (Source: MU)