Dex, who has the ability to read other people's memories through physical contact. He signed a lifelong contract with the Hero Association to cover up a certain incident 30 years ago, and has been serving the Association for his entire life. He receives an offer to free him in return for finding out the criminal history of the villain 'Jin', who is identified as a suspect in the Terra incident. In order to return to those precious to him, Dex decides to get involved with Jin.