Application Description

A high school student named Suhan struggles with his difficult relationship with his younger sister, Sunmi. Witnessing his friend Jinyong's close bond with his sister, Suhan becomes envious. Jinyong reveals a mysterious stone that claims to alter past events. Intrigued, Suhan uses the stone to rewrite Sunmi's memories, gradually improving their relationship. However, his fascination with changing the past leads to unforeseen and unexpected consequences.