Blue Star is divided into multiple safety zones. At eighteen, everyone resonates with identity factors to draw an identity, classified as either ordinary or extraordinary. Extraordinary individuals possess supernatural abilities and can cultivate limit-breaking techniques, life cores, and life arts. The world is plagued by strange beasts and strange calamities, while organizations such as the Security Bureau, the Extraordinary Association, the Exorcism Army, and the Strange Beast Research Center work to deal with these threats. Two great mysteries also exist: Glory Day and the Great Emperor. Luo Xiu, who crossed into this world eighteen years ago, always draws bizarre extraordinary identities. He possesses multiple supernatural abilities and can obtain skills, powers, and source energy from strange beasts.