Isobel Black finds himself within a strange, new world with RPG game elements. He is forced to use his intellect, determination, and in-game powers to survive the brutal world of Zepra, a mystical land with swords, bows, magic, monsters, and plenty of ways to die. When Isobel realizes the only way to leave Zepra is to defeat the deadliest beast, he's forced to become the legendary Beastmaster.