MTL - Yu-Gi-Oh!: Underworld Boss, Cancerous Creator God - Chapter 22

Born at the lowest grade, nobody thought Percy would amount to much.Everything changes when his bloodline manifests in an unexpected way, letting him possess random bodies across the cosmos. Snatching all sorts of advantages - like a second mana core - Percy can finally claim the resources and respect he's been denied.Yet, reaching the top won't be easy. Not every journey yields a valuable treasure, and neither the warring Houses nor the invading gods will wait for him to grow...***What to expect:- Weak to strong male MC- Daily releases- Fast paced with frequent powerups- Fantasy setting with magic and a system- Isekai elements (Percy often possesses random bodies on distant worlds)- Western cultivation elements (Cleansing mana core to extend lifespan)- Morally grey MC (Willing to break a few rules but not a scumbag)

Just like how everyone adored heroes in their childhood, a certain young man adored those powers hidden in shadows. After hiding his strength and living the mediocre life of a mob character by day while undergoing frenzied training by night, he finally reincarnates into a different world and gains ultimate power. The young man who is only playing at being a power in the shadows, his misunderstanding subordinates, and a giant organization in the shadows that gets trampled…. This is the story of a young boy who had adored powers in shadows possibly eventually reigning over the world of shadows in another world.

Ding Ning was just an ordinary youngster from a small border town in southwest China, but he had learned tremendous medical skills from his masters since his childhood. After graduating from college, he stayed in Ninghai City and tried to seek a job in a hospital there, but things did not go well at first. However, he accidentally saved Shen Muqing who was from a rich and powerful family, and then got involved in the confrontation between Ninghai special police team and a mysterious organization called Vampire Mercenary Group in order to protect Ling Yun who was his landlord’s daughter. It became the turning point of his life. After that, he started an incredible adventure during which he would find out the real identities of his father and masters and discover the secrets behind the mysterious organization Vampire Mercenary Group and the special weapons and tactics team Dragon Soul…
The story tells about how he opened nine apertures, fought with rogues, chased after various pretty girls and established a rich and powerful family by himself. He climbed up to the peak of his life step by step, and finally became medical sovereign.

- Description from Novelupdates

Zhang Yang, the office drone, spent his days slacking off with the campus beauty and his nights watching his sister-in-law practice leg lifts. His girlfriend Xiao Man watched him every day, falling deep in thought... Until one day, while straddling Zhang Yang, she unleashed a soul-searching interrogation, “Why did the dean bow to you? Why did the richest man gift you a villa? Why did the tattoo-covered big brother kneel before you, begging you to take his wife?”