During a covert investigation into a criminal organization, female investigator Erika let her guard down and fainted. When she woke up, she saw Mizuki, a former colleague and ex-girlfriend.

An intriguing interrogation was assigned to an arrested investigator.

Erika, who cannot accept Mizuki, who has defected from the enemy's organization, as an enemy, continues to be unable to resist. The lesbian Erika Ozaki is banned from working.