Mafia In A Perfect Disguise

Emily looks like an ordinary teenager you seen everyday, but she has a secret, she is the daughter of the Futeki Family, one of the most strongest Mafia family in Japan. Her family seen her as the heir for the 13th generation. She was not really into Mafia business,yet. Until one day, when she reached her age of 16th years old, her parents had arranged marriage with another mafia family for creating a new generation for both her family and her future in-laws family's sake. But one thing for sure, her fiancee turns out to be her childhood rival/best friend, Ryuuji. To make it worse, he knows Emily works at a maid cafe for a very long time but didn't spread it out yet. Could this get any worse for her?? Find out if you're curious.........