Apocalypse Gachapon - Chapter 744.5- 250 thousand crystals

James, a brilliant mechanical engineer and passionate history enthusiast, loses his life in a tragic house fire—only to find himself in a mysterious world as the ruler of an island nation. Armed with his modern knowledge and unwavering ambition, James embarks on a bold mission to industrialize his kingdom and build an empire on which the sun never sets.

The World Tower has unimaginable wealth and treasures. Once a week, as long as you rush high enough, you can surpass ordinary people and enjoy a brilliant and glorious life.

A thousand floors are capped, and some people say that reaching the thousand floors can get the wealth of the whole world; some people say that above the thousand floors is a beautiful new world or even heaven; some people say that they can obtain the power of gods;

Unfortunately, no one has reached the summit for thousands of years.

The strongest team in the world rushed to the 929th floor, which was unprecedented, and was still destroyed.

Wang Wen survived.

Time went back to twenty years ago.

Reborn with all the emotions and experiences, the lush Wang Wen in front of the World Tower is calm and determined.

- Description from novelbuddy

A man transmigrates as Dominic, an extra in a game. Being chosen my the Lords to defeat the MC of the game, he has to level up to the greatest ever limit. He has to defeat the MC but he needs some women by his side to help him. He needs the greatest harem. Exploiting them he gains not just a harem but also copies their special abilities.Just like a game, he gets to take down every member so as to face the MC.Please read on. I may not be frequent in updating but if I notice a good start I could release frequent chapters. Also support me with power stones.