Maknae of the girl idol group "Europa", Shine, gained a burst of popularity after a double nosebleed on a live stage. For a moment, she was excited about her future success, but she quickly learns that her body has changed since that day. Along with Chan Seon, member of boy group "Awaken", they dig into the suspicious things happening around them and find themselves involved in dangerous situations. But they're in too deep. Why they be able to maintain their idol status until the end in a bloody and chaotic daily life...?