All of MK2's members work really hard to please their fans. So hard that one of the members, Kagami, ends up getting sick. With their comeback coming up soon, the other members need to find someone to watch Kagami while she is sleeping. Imagine her surprise, when she discovers that her babysitter would be VIXX's Lee JaeHwan, or better known as, Ken. What will happen when the childish member of VIXX has to take care of a sick person?