Ch47 mc goes back in time with chaos in his body , the one he fought to kill with his comrades but he didn't know that the one who killed him would become chaos itseld so his comrades betrayed him after he killed chaos put him in some place when you can live for eternity entraped but he somehow went time but chaos is i' his body , so he becomes stronger yadayadayada to get revenge on those who betrayed him, good overall
The Hero Became the Duke’s Eldest Son