Reborn as a Bird, with a Demon Emperor for a Sister

Reborn in a vast fantasy universe, Su Ye, a biologist from Earth, is reincarnated as a newly hatched, scruffy little bird in the Monster Beast Forest of Blue Star!

The hundred races are locked in fierce competition. Humans, demons, devils, sea folk, and celestials slaughter one another without end. Sects, imperial dynasties, starry-sky behemoths, and forces from beyond the world are everywhere. The strong prey on the weak, and life and death are left to fate!

He awakens a lie-flat evolution System. Sleeping on autopilot, eating, drinking, and having fun all make his evolution points skyrocket, letting him break through without limit!

His nestmate little sister turns out to be the reincarnation of an ancient Demon Emperor's remnant soul. After her memories awaken, she devotes herself to restoring the demon race, yet thinks her brother is lazy, gluttonous, and a good-for-nothing with no talent. She spends all day worrying over him and taking care of him, guards him at every turn, and is an extreme jealous type!

Everyone believes Yao Xuanxi is the greatest Demon Emperor in the history of the demon race, but they don't know that Su Ye has been quietly lying flat for eons, rocketing through the realms while secretly protecting his sister and keeping the demon race's battles under control!

When a war among the myriad races erupts after thousands of years and the demon race teeters on the brink of annihilation, Su Ye raises a hand and covers the starry river. The laws of the Dao Venerable shake the heavens!

It turns out that above the peerless Demon Emperor stands an eternal supreme being hidden away in the world!

With a stunning beauty and his demon sister, who adores her big brother, Su Ye gradually transforms from a scruffy divine bird into an innate god-devil who subdues the heavens!

This novel and its characters are entirely fictional. Any resemblance to actual people or events is purely coincidental. Do not imitate.