When two female highschoolers accidently get involved with the most threatening gang in all of Seoul they are forced to go through new, trilling situations that come with being involved with a group like Bigbang. With Bigbang's gang rival, 2PM ready to take any chance for revenge, Hiyori and Mina are pulled into dangerous events and have to adjust to Bigbang's lifestyle. All Bigbang members are included, but the only romance will be GDxOC & TOPxOC.