第 4 集: 兩個女孩因共同過去而羈絆，以及由香里對春日的執著模仿
2017年7月24日 播出
The story of two girls who have been together in all things since they were children. Yukari has always been the type who wanted to do everything her best friend Haru did. It's unclear whether she acts out of envy, love, or madness, but her feelings become a darkness that leads to a tragic fate... (Source: Crunchyroll)