Big-sister Michi and little-brother Yoshi have been through hell and high water, but have come out with a bond that is thicker than their blood. Known as "The Yoshimichi Siblings," they are breakout stars with fans that span the Asian continent. As a child, Yoshi became hikikomori (a shut-in), after experiencing bullying at school. His mental decline affected Michi and her family, until a special someone saved him. Now stronger than ever, the siblings are seen as heroes to the young generation.