Homunculus Rebirth - Prologue

Our straight (?) bottom woke up ten years into the future and found himself on the bed of his childhood friend… At the start, the bottom was shocked to his very bones, but he soon quickly accepted this premise and found the whole situation to be rather amusing. Precisely then, the bottom once again went back to his timeline — back to when he and the top were just platonic childhood friends.

The end of the world is coming, the world has undergone great changes, and everything has changed. Plants, animals, and even insects, as long as there are living things, have mutated.
Become more powerful, and even evolved supernatural abilities, such as chickens and ducks that can fly to the sky, such as cats and dogs that can breathe fire.
But only humans, without any obvious changes, seem to have fallen from the top of the food chain to the bottom of the food chain overnight.
Any creature that can open its mouth to eat can treat humans as food.
But fortunately, this world has not completely killed humans. Gradually, humans discovered that they had the ability to cultivate compatibility with other creatures.
As long as it has a high degree of compatibility with some powerful mutant creatures, it can be used for its own use to achieve the purpose of protecting itself.
Fang He is a person who is very compatible with mutant animals, but it is also because of his ability that he has changed from the strongest to the stupidest.
Fang He, who was reborn, said, “Hmph, this time…”

- Description from novelbuddy

Demons and Beast descended, terrorizing the whole world for the past hundred years. Everyone can awaken a grimoire and summon a beast during their age of ceremony. Lucas, awakening the weakest grimoire, also awakened the weakest beast- a small dog with no combat capabilities. Fortunately, as a transmigrator, Lucas also mysteriously awakened a system that allows him to evolve his summons into their mythical beast counterpart. Follow Lucas and his journey to greatness as he evolved his beasts into never been before seen mythical creatures.

[Warning: Mature content, lemons, comedy, face-slapping, and a smart protagonist!]“So many beautiful girls!”After an unfortunate science experiment gone wrong, 25-year-old virgin Ren Kisaragi, wakes up in a strange new world.A world where curses manifest as eldritch horrors, bringing destruction with every breath.A world where female weavers command the very laws of reality and bend the elements to their will, while male warriors, blessed with monstrous strength, can shatter mountains with a single blow.It doesn’t take long before he realizes he has reincarnated into “Mystic Chronicles”, a fantasy novel he once read and dropped out of boredom.However, he isn't the protagonist or even a side character, he’s just a nameless extra, a mere background figure destined to fade into obscurity.But there’s one problem. He’s somehow enrolled at Imperial Academy, the most prestigious weaver academy in the kingdom… which is supposed to be an all-girls school!And as the only male weaver in an entire academy of talented (and terrifying) female weavers, his existence alone is enough to shatter the balance of the world.With a suspiciously broken cheat, an entire school of powerful and competitive girls watching his every move, and curses lurking in the shadows, Ren must navigate this chaotic new life before he gets caught up in a story that was never meant to include him.But maybe—just maybe—he can turn this anomaly into an advantage. And if fate allows, fulfill his lifelong dream of being surrounded by beautiful, ambitious women while he's at it.Can he survive this world where he's the ultimate anomaly?