Seo Eun-hyun, an ordinary office worker, is suddenly transported to a cultivation world during a company retreat. Unlike others blessed with spiritual roots and talent, Eun-hyun is powerless—unable to cultivate, fight, or even survive on his own. For fifty years, he lives in quiet insignificance... until death.

Then, he wakes up—back at the start of it all.

This isn't reincarnation. It’s a return. Again and again, he relives the same life in this brutal world, each time with memories intact. Trapped in an endless cycle, Eun-hyun resolves to break free—not by overwhelming force, but by persistence, cunning, and learning from every failure.

Through slow, methodical growth, he begins to carve out his own path in a world where strength rules, and the weak are forgotten. As he unravels the mystery of his regression and confronts hidden powers that bind him, one question remains:

How many lives must he endure before he can finally live his own?

On the day he turned 11, Tom Riddle received his acceptance letter to Hogwarts, and his soul merged with a traveling soul from our world.

A new Tom Riddle is born, and he will take the wizarding world by storm.

With future knowledge and some creativity, he will achieve anything he sets his mind to.At the same time, he is also in the world of the Marvel Cinematic Universe/X-Men.

No harem, by the way