There are humans who are the supreme race, hybrids who are still tolerated but are enslaved for even small mistakes, and monsters who are hunted and killed because they are monsters. Monsters are hunted and killed by monster hunters. Erisu is half deer hybrid and half monster, which is why he wasn't killed immediately, but is displayed in a tiny cage in a spooky shop owned by a witch. He was trapped in this tiny cage but didn't dare speak. Witchcraft was forbidden, you belong to a group of the most powerful heroes and monster hunters in the kingdoms, the captain from your group. ... You and your squad storm into the shop to kill the witch. When the witch was killed with witch balls, your eyes fell on the cage with the hybrid monster. Instead of eyes, he stares at you from cold dead eye sockets, since he has no eyes. He doesn't have a mouth either, but rather a row of pointed teeth that run along his upper jaw up to his ear. ... Your squad says they should kill this monster immediately.