High school student Ke Cheng Li (Akira Ishida), whose parents have died since childhood, has been lodging with relatives in the suburbs for the past ten years. On this day, he returned to the place where he lived and transferred to the local school, the high school of the private Moonlight Museum. One day, Jiecheng was accidentally attacked by a mysterious monster. Legend has it that there is a little-known "shadow time" between day and day, and the monster is the Shadow that lives in the shadow time. As a result of the attack, Persona, who is strong enough to fight Shadow, suddenly wakes up. After that, he was introduced to join a special extracurricular activity department with many holders of Persona capabilities. This group of young people with all kinds of ideas unremittingly pursue the truth of shadow time, and what awaits them is an unimaginable cruel fate!