Primary

• Megumi Shimizu Stalker of Natsuno Yuuki
• Megumi Shimizu Killer of Tooru Mutou
• Megumi Shimizu Best friend of Kaori Tanaka
• Megumi Shimizu Friend of Tatsumi

Extended

• Natsuno Yuuki Best friend of Tooru Mutou
• Tooru Mutou Friend of Ritsuko Kunihiro
• Tooru Mutou Best friend of Natsuno Yuuki
• Tooru Mutou Brother of Aoi Mutou
• Tooru Mutou Brother of Tamotsu Mutou
• Tooru Mutou Son of Mutou
• Tooru Mutou Victim of Megumi Shimizu
• Tooru Mutou Friend of Masao Murasako
• Kaori Tanaka Sister of Akira Tanaka
• Kaori Tanaka Friend of Natsuno Yuuki
• Kaori Tanaka Best friend of Megumi Shimizu
• Tatsumi Servant of Sunako Kirishiki