I Am the Nanny of the Villain - Chapter 173:

After putting in over 8000 hours into the game, he had achieved the status of being a true no-life god. Sadly, one day his save data disappeared and the shock of losing so many hours of effort killed him.However, this was not the end, for he awoke surrounded by the world that before now, he had only seen through a screen. This is the story of Zephyrus, who uses his gaming knowledge to enjoy his time in the new world.

A boy wakes up with omnitrix as a X-GENE

Transmigrating into a world of cultivation, you find yourself at the lowest rung of the sect's hierarchy. Everyone wants to bully you to gain some benefits. Fortunately, there are always a few junior brothers and sisters who are 'generous and understanding', allowing you to improve peacefully and secretly grow stronger. Years later, unbeknownst to anyone, you successfully become a deity within the sect. This day, your master visits you at the sect's request.'The upper echelons of the sect believe you have been diligent and loyal over the years, and though your strength is mediocre, you are an honest person, so they've found a marriage alliance for you.''An alliance marriage?''Not exactly. The other family has a rule: marrying into their family means taking their surname.'Is this... becoming a son-in-law who marries into the wife's family?

Beings that create and control monsters and demons, beings that build and reign over malicious labyrinths, the chosen individuals to possess an overwhelming Unique Skill… They are the Demon Lords.