Undercover investigator Rei has been married to her senior, Kenichi, for three years. She is currently taking a break from work to prioritize family and having children but hasn't had any luck. This has created a rift between her and her husband who is focused on his job. Meanwhile, Kenichi goes missing during a mission without a trace. With a bad feeling, Rei tracks down her husband's location, equips herself, and heads out alone to find him. However, she discovers that it is the hideout of a notorious robbery gang. Confronted by the members, Rei finds herself in a situation where her husband is taken hostage...
