Koyomi Hidaka, who lives with his father, meets and falls in love with Shiori Sato. After learning their parents are getting married, they attempt to run away to a parallel world where they are not step-siblings.
Koyomi Hidaka, who lives with his father, meets and falls in love with Shiori Sato. After learning their parents are getting married, they attempt to run away to a parallel world where they are not step-siblings.