4.9 BlurayWhat’s Going on with My Sister? (2014) 17 May 2014 What’s Going on with My Sister? IMDb: 4.9 2014 107 min min 1649 views Mitsuki (Tenka Hashimoto) and Yuya (Yukichi Kobayashi) become stepsister and stepbrother because of their parents’ marriage. Mitsuki ... ComedyFantasyRomance