RBK-084 Until the investigator falls... Humiliating aphrodisiac training Emi Nishino

[In pursuit of her sister's enemy, Mantis...] Rio Saionji is a member of the Special Crimes Division. She lost her older sister Mao five years ago. Mao also belonged to the Special Crimes Division and was an excellent investigator. However, while conducting an undercover investigation into the underground criminal organization Mantis, he died in an accident during the investigation. Details have not been disclosed.