mysterious mafia stepbrothers innocent sister

comedy,fun,thriller, mysterious, this story begins with a girl known yn who have higher Iq and she started going to university and met a friend become to be her best friend and her mother married of a father who have seven sons and mafia kings later yn mom married her boyfriend and after that a disaster happen a creepy guy who is obsessed with yn and want to destroy bts and after all of this chaos there is a cute love story