Sha Po Lang - Chapter 117

Perhaps it is the choice of fate. As a senior otaku, Qian Lingfeng got the “steel shell system”. However, when he swept the world with the system, became a local rich man, made all kinds of beautiful women, opened a harem, and realized the ultimate fantasy of thousands of otaku, he found that things seemed far from simple!
When the end comes, biochemical zombies suddenly come down, fierce beasts are in power, bloodthirsty zerg roam to kill the world, and human lives are comparable to dirt. Where will weak human beings go in this world? Is humanity going to be extinct? Or … can an otaku save the fate of the human race?

- Description from Novelupdates

What happens if a villainous playboy gangster is reincarnated into another world?Lin Feng: Wang Jian! How dare you capture my childhood friend and mess around with her?!Su Xian: I-I am with him willingly.Lin Feng: N-No way. You are lying. There is no way you would wear that maid dress otherwise!Wang Jian: It's not just her.Before Lin Feng could understand what he meant, in front of him appeared several women, all dressed in maid outfits. Upon seeing these women, his anger rose dramatically.Many of these were women who used to love him dearly. There was his fiances, teacher, cold princess, the immortal fairy and many other beauties.However, Lin Feng was just the first protagonist who suffered at Wang Jian's hands. The game had just begun as Wang Jian's wicked desires knew no bounds.

A story of time-travel. Sly and cunning, she unexpectedly became a sickly noble lady whose fiancé is merciless and demotes her to a lowly concubine. She sneers and bravely breaks off the engagement. To hell with scumbags, marry heirs to lords, blind the courts with her brilliance.

Aomori, who has a monster-fighting system, came to the world of One-Punch Man and gained the ability to enter various instances.

Therefore, “Founder of the Hero Association”, “NO. “And other titles fell on him one after another.

Comprehensive flow, the main world One Punch Man.

Completed dungeons so far: Pokémon – Demon Slayer – Sword – Pokémon – Digimon – Spell Return – Yokai Comprehensive World (Girls that Noragami Inuyasha can see, etc.) – Pokémon – One Piece-re0-Dragon Ball wait.

- Description from novelbuddy