When Yuna Lee's mother moves to Germany to get a bachelor of music, she stays with her father, a college professor and three senior brothers and sisters that fiercely defend her. During the summer holidays, he visits his mother in Germany. Where she falls from the cliff and saved Ryena, a 18-year-old gentleman who lives in the land of Phantasma. Ryeno concludes a deal with young: if he saves her life, she must go with him and become the queen Phantasma. After acceptance, it returns home, only to return to Germany in a few months, and Rienin quickly takes it in Phantasma. Now she must cope with the queen of Phantasma, forgetting about the world from which she comes.