あらすじ
Connected through our uncle, we are tied together—me, the biological older sister, and her, the adopted younger sister. Iori Fukushima, who grew up in an orphanage, was adopted into her older sister Riko’s family when she was a child. However, not long after, their parents passed away. After that, Iori was sent to live with relatives, but Riko had her own thoughts about the matter...