A girl named yoo youngki comes home one day to find her parents have been murdered and has no where to go but to her older brother. Her older brother yoo youngjae ran away two years ago and now lives with five other guys as a gang called BAP. She goes looking for her brother and is determind to find out what happened to her parents without her brother knowing. But she dosent realize what she has gotten herself into by finding and staying with her older brother.
very sweet but tough guy who falls for youngki at first sight
stays to himself and seems cold (youngki takes an interest in him)
very unaccepting and dislikes youngki a lot
quiet and always does what he's told, he also stays around himchan a lot
loves his sister and wishes to protect her and for her not to make the decisions she makes
18 year old, fiesty and a fast learner, looks up to and loves her brother
no one knows his age (looks very young) but he is the master mind leader of bap