The granddaughter of a yakuza boss is reborn as Francesca Calvino, heroine of a mafia dating game set in a fantasy realm where crime families serve the king. Expecting another lonely life, she relies on her upbringing to plot a way through the game's story and out of organized crime for good. Her first step is ending her engagement to Leonardo Aldini, the young head of the Aldini family and the game's chief villain. When she gets through her own kidnapping without needing any male lead to save her, she ends up impressing Leonardo instead. Rather than calling off the marriage, he still wants to wed her and refuses to leave her alone. Now she has to find some way to live an ordinary life while a brazen crime lord keeps chasing her.