Naruto: Starting with Infinite Chakra - Chapter 243: Chibaku Tensei

The world had changed when the System arrived, alongside the Cataclysm that filled the world with monsters. The technology was gone, replaced by classes and skills that allowed the people to fight back. When Devon ended up as a Blacksmith, a class that didn’t grant Intelligence, he had to face the reality, that his old career that he loved - mathematical sociologist - was over. Instead, he had ended up as yet another discarded member of the production class, overshadowed by the existence of the System Shops to the point of total marginalization. But, what if all he needed was to reapply his scientific thinking to the System...

Emperor Xianwu ninth reincarnation, only to break through the shackles, was besieged and killed by masters from all walks of life.

Fortunately, a ray of divine consciousness traveled across thousands of planes to the earth and entered the body of the dead young man, just to get rid of the anger in his heart and to regain that peerless peak!

- Description from MTL

A polite and lethargic boy was reincarnated in another world as a vampire bishoujo.

Witnessing her ex-boyfriend and best friend getting together, Isabella Weaver impulsively decided to have a flash marriage!After the wedding, Isabella led a more thrilling life.The neighbor's dog bit her, and the next day the neighbor disappeared and the dog was missing.Her boss harassed her, and the next day the company was emptied and the boss vanished.The principal wanted to expel her, and the next day the school was closed and the principal disappeared.Her biological father hit her, and the next day the house was gone with her father and stepmother both missing!Isabella was a bit panicked. Just who was this husband she randomly picked up on the street?“Sir, could you please introduce yourself? I can't handle too much shock!”The man calmly replied, “My identity, your husband, the rest, unimportant.”(The most pampering and sweetest on the entire internet! There's none like it! After reading this book, you won't need to eat sweets because—you'll be sweetened to death.)