After Dazai defected, he exposed the fatal flaw of his original partner Chuuya Nakahara: the filth cannot be turned up, otherwise he will die.
Therefore, in order to become a truly strong man, Zhong also began to travel through other worlds to practice in various ways.
World One: A Certain Meteor Street (Life)
World 2: A certain Uzumaki family (sealed)
World 3: A certain Rukongai (soul)
Intention: Don't forget your original intention and move forward courageously