Intro：Nolan was an apprentice to a soul merchant named Mr.Rick, and before that he was just a college sophomore. After becoming an apprentice, Nolan followed Mr.rick through various worlds and time points, trading with creatures of different ages and races, and the content of the trade was souls. One day when Mr.rick was dealing with items for sale, he needed to leave for a moment because of an emergency, so he left his grimoire in the room and asked Nolan to deal with the traded souls according to the agreement in the grimoire. Nolan found a soul of a girl from Earth while dealing with the soul, so he tried to secretly help the girl break free from the bond of the contract, but due to improper operation, the girl's soul shattered. The other souls saw Nolan breaking the contract and rioting. Nolan, in his panic, saw the tips in the magic book and finally crushed the rioting souls. Nolan confesses to Mr.Rick upon his return and Mr.Rick appreciates Nolan's kindness, but also sends Nolan a warning. After warning Nolan, Mr.Rick used the power of the grimoire to restore the girl's soul and told Nolan the story about this soul. Nolan finally made peace with his mind.