Rene's existence was a cycle of violence, driven by an inner 'Monster' that compelled him to kill. After a fateful end to his hitman career, he faces judgment and is inexplicably transported to a new, fantastical world centuries in the past. There, he's tasked with living a life dedicated to the betterment of others, every action meticulously weighed.

Rene is a complex antihero – a former hitman with a dark past, now navigating a path of forced atonement. He's remarkably tactless and morally gray, yet driven by an underlying, if begrudging, desire for something more than his violent history.

Across the series, Rene's journey is a compelling blend of dark progression and unexpected community building. He must leverage his dangerous past skills in a world brimming with fantasy elements, all while striving for redemption and inadvertently gathering a found family and a growing harem.