it's a story about a girl whose brother is a mafia king and a merciless king of this world. y/n is a cute flirty crackhead type she is pro in flirting. JEON JUNGKOOK a mafia king he is not that overprotective brother but yeah protective. he don't takes yn freedom he always give what she want and yn to don't misuse this freedom. he loves his sister more than anything.