Meet Cha Eun Jin, who is a bit of an anomaly in the Korean criminal underground. This scrappy 26-year old, orphaned and separated from her older sister when she was still a child, has fought her way up the food chain to become the leader of her own gang. Known in mob circles as Mantis, her sterminates in hand-to-hand and weapons combat are unsurpassed, and anyone who crosses her can expect abeating, her own men included. Having grown up in such a male-dominated and harsh-prone environment, Eun Jin has adopted a tomboy lifestyle, walking, talking, and dressing like a man.
However, this is all turned upside-down when Eun Jin finally is reunited with her long-lost sister. Unfortunately, she is dying from cancer and asks a favour of Eun Jin: to get married and settle down. So what does the legendary gang leader do? She sends out her men to find a husband for her, as quickly as possible. Of course, this is easier said than done.
Though they hire a professional to give Eun Jin a makeover and give her dating lessons, this ends up backfiring as she keeps lapsing back into gangster mode.
Finally, Eun Jin settles on Kang Su Il, a civil servant who has no idea what is going on most of the time. Seeing Su Il as the quickest way to fulfil her sister’s dying wish, Eun Jin gets hitched, which is when the fun really begins, as she tries to play housewife to the clueless Su Il while continuing to run her gangland operations. Unfortunately, matters are complicated as the leader of a rival gang tries to muscle in on Eun Jin’s territory. And if that wasn’t enough, the dying sister makes one more request: for Eun Jin to become a mother.
