The King Of Passive Skills - Chapter 28

Doomsday comes, and human beings enter the heavenly world.
Ten years later, Yang Chen, who was betrayed tragically, returned strongly with the Tianyu bug. In this life, he vowed to make the betrayal pay the price. He has a powerful bug bonus, just like an open hang. Frightened to hear…

- Description from novelbuddy

R18, Dual CultivationYang Wei is an undefeatable mage.However, his power got too great, and as a result he was challenged by every mage from across the lands.In the end, the Heads of the most powerful magic clans all banded together to seal him in a void where he would perish.Of course, death is too small a thing to stop him.By reincarnating himself in a new world entirely, Yang Wei ends up in the Mashyan World.A Cultivation World popular for being a Women's World.He goes on to join the Dragon Blossom Sect, a sect popular for having not only powerful beauties but the kind that have a thing for strong, beautiful men.How will he fare...Warning: No Rape, NTR, Yuri or Incest....

Introduction to One Piece’s Bounty System: Tianlei crossed the One Piece World and become the nephew of the Navy Admiral ‘Sakazuki, ‘Akainu’, Tian Lei thought it was very outrageous until he found himself having a [bounty system] that can be exchanged for everything in the world of One Piece. As long as you kill or capture pirates, you can draw a Skills, weapons, and devil fruits. Such as ‘Navy Six-style’ ‘Overlord color Haki (Busoshoku Haki)’ ‘sense color Haki (Kenbunshoku Haki) ”armed color Haki’ ‘devil fruit’ ‘sword skills’ have everything!

- Description from Novelupdates

Yang Feng somehow transmigrated into a different world and received a legacy of an ‘ancient high tech’ family, which does not directly raise his power, but gives him the technology to build things which are way more advanced than the seemingly medieval world.