RBK-084 — Investigator, Until She Falls... Aphrodisiac Training Of Lust Emi Nishino

[Continuing to pursue her sister's enemy, Mantis...] Rio Nishizonji is a member of the Special Crimes Division. She lost her sister, Mao, five years ago. Mao was also a member of the Special Crimes Division and was an excellent investigator. However, she died in an accident during an undercover investigation of the underground crime organization Mantis. Details have not been revealed.