It’s the age of magic; a world where magic idols prevail. In these extraordinary times, an ordinary idol group called Star One is suddenly gifted with magical powers. And with these magical powers, a mysterious enemy appears. The once unpopular idol group finds themselves tasked with saving the world. Will they be able to take on this enormous responsibility to restore peace? (Source: WEBTOON)

Han Yeo-Reum, his friend's younger sister, who appeared in front of Black Dragon at Dongdaejeong High School! Should I keep her unpredictable?