Twilight Syndrome: Kinjirareta Toshi Densetsu is a survival horror adventure game for the Nintendo DS. Players control Mizuki and her friends, Riko and Reika, as they navigate their new high school. When students start receiving ominous chain messages, the trio embarks on a spine-chilling investigation to uncover the truth behind the mysterious occurrences.
The story follows Mizuki and her two friends, Riko and Reika, who she meets after moving to a new high school. After students begin receiving mysterious chain mail text messages from an anonymous sender, the three girls decide to investigate.