Everything has a cost.When Ai’s elder sister, Kozue, shows up and demands that she return to live with their mother, Ai has no choice but to run. She just wants to be free, but as family troubles mount, her world only becomes more suffocating. Unable to ignore her pain, Yuzuru resolves to help Ai make the right decision—one she won’t regret. He asks Kaoru for help, but is she willing to put aside her own feelings for the sake of her romantic rival?

A second chance at love...Yuzuru Asada is filled with regret. In junior high, he dated a girl named Ai Mizuno, but her free-spirited nature, the very part of her he fell in love with, ultimately drove them apart. After Ai moved away, their love should have faded into a bitter memory. But during the summer of Yuzuru’s first year in high school, she suddenly reappears in his life and, without a trace of resentment, tells him that her feelings haven’t changed. Yet old wounds and misunderstand...

When universes collide...Yuzuru has begun to mend things with his ex-girlfriend Ai, finally overcoming his long-held regret. But this relief proves to be short-lived when fellow literature club member Kaoru stops coming to school. Concerned and aware of her situation, Yuzuru tries his best to help, but she refuses him at every turn. Can he keep their friendship from falling to pieces as loneliness and regret take root in Kaoru’s heart?

The power of music.With summer vacation right around the corner, Sousuke invites Yuzuru, Ai, and Kaoru to form a band with him for the school festival. Though Yuzuru is hesitant at first, he quickly warms up to the idea of trying something new with his friends. But it soon becomes clear that Sousuke is interested in more than just making memories...he wants Risa to play bass, something she swears she will never do again. Risa’s past, Sousuke’s determination, and Yuzuru’s desire to communic...