The younger sister who loved her older sister begins to chase her shadow──. This is the second volume of the ensemble drama where girls indulge in each other's hearts, brought to you by the Dengeki Daioh editorial department. The death of a graduated honor student caused great turmoil among Chizuru and her friends living in the academy. For her real younger sister Mio, this turmoil was even stronger……. Mio begins to sacrifice herself to chase her sister's shadow. Chizuru, Kei, and Yuki each approach her in their own ways. The hearts of these wounded girls sway precariously.