After her sudden death at the hands of an assassin, the former granddaughter of a Yakuza boss reincarnates in a otome game as the heroine. The game is, of course, set in the time of early European mafia (but with magic and other special abilities somehow)—specifically a kingdom where the royal family is supported behind the scenes by five major crime families! "Please God, whyyy, I only wanted to life a normal life!"
A dangerous love game between a former Yakuza heiress and her villain fiancé begins!
Alternative:
The Beloved Daughter of a Crime Family Was Reincarnated as the Daughter of a Gangster in an Otome Game. ~ Highest-Ranking Villain, That Doting is Unnecessary! ~;The Beloved Daughter of a Crime Family Was Reincarnated as the Daughter of a Gangster in an Otome Game