Seventeen members but in three rival gangs. Inspired by their CALL! CALL! CALL! MV One misunderstanding sets off a series of events that threatens the fragile peace between three rival gangs. Ruby gang: aka Rich Boy gang. Consists of Seungcheol, Mingyu, Soonyoung, and Seungkwan. They like to present themselves as elegant and refined. Having a lot of money is no guarantee for happiness. At least one of them has a secret he doesn't want the others to know. Dangerously ha