MTL - Rebirth 2011 - Chapter 579 many people miss

He died on the wedding of the girl he had a crush on, after a long and successful career. After convincing Yama to send him back to the world, he decides to fix the areas in which his life went wrong. Realizing the lack of love and romance in his past life, he sets out to conquer the hearts of various women.

- Description from Novelupdates

The whole world mutated. Mysterious resurrections happened in real life. The Tribulation descended.

A Speedster in a Fantasy World

Everything was over. Everything had stopped.The clanking, the rattling.Even if I seemed lifeless, I still had a life.Crackle! Snap! Crack!I failed to protect Lady Succubus. I failed to defend the dungeon. I was shattered into pieces, completely destroyed.[Succession Complete!]“Succession…? Assimilation…?”Broken and broken again. With each downfall, the world’s true nature begins to reveal itself.