A young woman with amnesia must hunt down the people responsible for her brutal and bloody past to find the truth of her lost identity.

Yeo Eui Joon, who works at a convenience store frequented by gangsters, wants to quit as soon as possible because of the dangerous work environment. However, he's stopped by the pay that's 1.2x more than other stores! So, Eui Joon, who needs every penny he can get, overlooks the danger and continues working there. Then one day, Bum Geon Woo, who looks more like a gangster than any other gangsters show up. And as soon as he appears, the other gangsters simmer down... Will Eui Joon be able to safely continue working at this convenience store?

I'm Rei Hitoma, a self-professed misanthrope thanks to some past trauma. Just when I thought my new teaching job in the mountains would provide a chill, rejuvenating environment, it turns out that this school is actually for demi-humans who want to become full-fledged human beings! There's a mermaid, a werewolf, a rabbit, and a bird...all of whom are now my charges. It's my duty to teach them about humankind—and maybe in the process, I'll learn a few things myself. This isn't an alternate world or a case of reincarnation. It's just the story of a teacher at a somewhat peculiar school, and his students who are striving to become human.

Ten thousand years ago, the immortal king Muyun was conspired by others for holding the Zhu Xiantu. After ten thousand years of sleep, his remnant soul awakened on the famous "Trash Muyun" of the Southern Cloud Empire of the Heavenly Fate continent.