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ディア・ペイシェント
 Mano Chiaki
 Zama Atsushi [Monster patient]
 Mano Mari [Chiaki's sister]
 Hamaguchi Yoko [Internist at Sasai Memorial Hospital]
 Kaneda Naoki [Physician at Sasai Memorial Hospital]
 Numata Shinya [General Secretary at Sasai Memorial Hospital]
 Takamine Shuji [General Secretary at Sasai Memorial Hospital]
 Kira Daisuke [Lecturer of Russian Martial Arts]
 Asanuma Chieko [Monster patient]
 Saionji Mitsutaka [Patient with dementia]
 Sasai Soichiro [CEO of Sasai Memorial Hospital]
 Hasumi Isao [Security guard of Sasai Memorial Hospital]
 Mano Yuko [Chiaki's mother]
 Mano Toru [Chiaki's father]
 Seto Shota [Caregiver]
 Watanabe Misaki
 Miyake Sayaka
 Miyabe Satoko [Nurse]
 Makimura Keigo