Kizudarake no Love Song (2001)

Yoshimura has a younger half-sister Yuka Kawahara. Six months ago Yuka's mother passed away, and she came to Tokyo looking for help from her only close relative, Yoshimura. Yuka is an aspiring songwriter that attends a technical school for music. She is in disillusion about the life that Yoshimura now leads, and really and truly wants to see him get his life back on track again.