START-425 MINAMO, we’re husband and wife, aren’t we!! A dedicated investigator who has gone three years without intimacy ends up pretending to be a married couple with a younger male subordinate, only for their relationship to become real. An investigation record of one week, from investigator to woman.

A strong-willed female detective devoted entirely to her work is assigned to go undercover with a junior male detective as a married couple. The apartment they end up living in is, surprisingly, right next door to a yakuza member. To avoid exposing their identities and make everyone believe they are a real couple, the two begin a fake newlywed life. What was supposed to be nothing more than part of the mission gradually stirs her heart, leading her to fall deeply in love with her junior partner.