Lee Yang a cheerful Japanes girl was living a great life with her dad (single parent). Until, her shifting to America . There she discovers new secrets of her parents past life which turns her life upside down. She discovers her father is a mafia king and in the meantime crosses with 2 boys. One is her enemy and one is her friend. Will she be able to make correct decisions? Will she become the next mafia queen? Will her cheerful personality be affected? Read out to find more.