He Is Warmer Than Time - Chapter 2363 - 2425-absolutely true

Reborn in the immortal and demon world where righteousness and evil contend, Song Yan is kidnapped into the Puppet Demon Sect and assigned as a skin-making servant.During working, his system unexpectedly awakens, allowing him to enhance his lifespan and comprehension as long as he engages in skin making.[You absorbed the remaining life span of a stubborn donkey: 10 years][Please choose the lifespan to invest][You invested ten years of lifespan to comprehend Profound Root, you continued to lie there, being penetrated by ghosts...]

A typical, frail senior high school student had acquired the SuperCivilization Technology System. From academic dreg to academic prodigy, from the weak to the strong. Basketball genius, top-level hacker, medical sage, business tycoon... Empowering the nation through technology, elevating our great Huaxia!

After picking up a phone on the streets, Feng Yuchen was sent to the world of High School of the Dead. He, along with 100 people, have to travel through various worlds, fight and solve quests in order to survive.

Whoever dies in that world, would be teleported back to the real world without memories of what happened before and die in an accident one year later.

- Description from Novelupdates

In a world where Beast Tamers command respect and wealth, Kai is nothing but a street rat, scraping by on the streets of Ashenford.Orphaned and despised by townsfolk, he's learned to expect nothing more than cold stares and cruel words.His life takes an unexpected turn when he stumbles across an injured beast deep in the wilderness.Kai nurses the creature, forming an unspoken bond that will alter his fate, and he begins to see the harsh realities of a world ruled by power, status, and secrets.