Twenty years on from the nightmare that visited the Morikawa family, a woman appears at a certain seaside town. She's been traveling around, gathering information about Yusuke Saito's story-and she's introducing herself as Yusuke's daughter. Now Sumire Okazaki has reached out to Akari Ichinose, telling her about a five-year gap in Yusuke's life that nobody knows about. But who really was the devil this whole time, and what was the crime committed?