Kyoukai Senjou no Horizon – Girls Talk - Volume 1, Chapter 1: Past and Wolf

After Xia Feng transmigrated, his heart was mysteriously removed.In its place, a defective demon heart capable of sustaining life only for eighteen years was implanted.This is a magical heart that can sync with the power level of its target.To stay alive, he bound himself to the ultimate villain of the future, a Destructive Witch who was destined to destroy the world.The stronger the Destructive Witch becomes, the stronger he becomes!Thus, Xia Feng realized, it's not my fault for stirring up trouble: “Miss Witch, I admit you're strong, but not strong enough!”

Jang Joonbum started stream to enjoy an easy life.

Choosing a college when your family is struggling can be difficult, but it isn’t supposed to be world ending. And the falling meteor is seriously limiting Matt’s options. Now in the aftermath, his home city is locked down by a mysterious dome, corporations are looking to monopolize a wealth of new untapped resources, and people are suddenly developing powers via a system that seems to have borderline sinister intentions. In the chaos, he decides to stick to what he knows: stay out of the spotlight, grind, and survive.Watch as Matt is dragged into a dark LITRPG set in the real world, where the price of failure is death, and the prize for winning is beyond his wildest dreams.