Valkyrie's Shadow - Chapter 18Winter’s Crown: Act 6,

The end of all worlds approaches.

The Demon King Order harvests lives from all manners of living beings.

Within this darkness full of despair,
A single person escaped from space-time, returned to before the world collapsed, determined to change the fate of the past.

But as time pass, he gradually finds out that the Apocalypse isn’t quite as simple as he thinks…

The constant mission is getting redemption.

Shuttle though various worlds to become a variety of scum men, do a little whitewashing and become a good man in the eyes of everyone.

Redeem those who are miserable, and let them live a happy life.

- Description from Novelupdates

Aaron, a wildlife biologist, became a military strategist right after a global war between nations began.He never wanted to participate in the war but he had to, because he wanted to continue his studies on endangered species the moment the war was over, but to his surprise, everyone in his unit were killed, including him, and the next thing he knew, Aaron woke up in the body of a young noble having a similar name to his.However, he also noticed he had awoken in a world different from Earth.In this world, demonic beasts ran rampart with only one thought in mind, causing them to feed on anyone they see, be it humans, elves or even magical beasts as well.During his first encounter with a magical beast, Aaron awakened a system which allowed him to bond with magical beasts and to obtain terrifying abilities from these bloodcurdling magical beasts, so he used his experience as a wildlife biologist to help make it easier for him to bond with these beasts.However, Aaron also noticed he could evolve these beasts if their loyalty towards him had reached a certain level, so he vowed in his heart to grow strong enough to protect those he cared about in this world with the hope of living a happy, peaceful life where he'll be able to focus fully on his passion as a wildlife biologist.

Outdated game streamer Fang Zhou was invited to a romance reality show, but he discovered that out of the five female guests on the show, four were his ex-girlfriends whom he had wronged.He told the pure school beauty: “You’re too innocent, I prefer someone more seductive.”He told the top-tier female star: “Your voice is too high-pitched, I prefer a natural one.”…Facing his abnormal ex-girlfriends, Fang Zhou originally just wanted to keep a low profile, but unexpectedly, the audience started shipping him with his ex-girlfriends.The live broadcast room’s popularity skyrocketed, each episode became explosively popular, and advertisements flooded in.Later, when the ex-girlfriends discovered each other’s identities, he was pressed into a small dark room, looking up at the women’s exquisite faces, and heard them say, “If you don’t behave, we’ll turn you into a specimen, so you’ll never leave us.”Fang Zhou: “I’m doomed, all my wronged ex-girlfriends have turned yandere.”