Yuki, a CODA (Child of Deaf Adults), has hearing-impaired parents but possesses a gift for music. He is a model student by day and plays the guitar in a band at night. One day, he visits a mysterious musical instrument store and is transported to a strange place. There, Yuki meets Sven, Lucia, and Zara. Together, they form a band called Night Stars. Meanwhile, Sven has a crush on Lucia, who is known as the angelic goddess of the International Arts High School, and he tries to win her heart.