I decided to retire in search of freedom. But then, what the hell is this? “Nice to meet you. My...
Mage agent for powerful magic family betrays his master by stealing a powerful tome. Masyer of the house finds out and kills him, his last wish to be free is granted by the book and he regresses back in time when he was a child.
Retaining his memory and skills, he decides to rewrite his story, and both live the free life he always wanted and get revenge on his former masters.
MC is a powerful mage, often understimated.
According to those familiar with the soirce, no romance.