This is a crossover between K-ON! and Persona 4. Yui, Ritsu, Mio, Tsumugi and Azusa, the Light Music Club has been forces to move to a new school and the girls want to go to that school and they end up teaching and becoming friends with Chie, Yukiko, Rise and Naoto. How will The Light Music Club win the hearts of everyone at Yasogami High School with Chie, Yukiko, Rise and Naoto!

Missing cases break out in the city, and two personnel of Houkago Tea Time is missing at the same time. As the two brunette lost in daze, they were forced to learn the truth. Is that the right answer, or...?—remake from "K-ONSONA"