The manga I’m a Behemoth, an S-Ranked Monster, but Mistaken for a Cat, I Live as an Elf Girl’s Pet (Ｓランクモンスターの《ベヒーモス》だけど、猫と間違われてエルフ娘の騎士ペットとして暮らしてます, S-Rank Monster no “Behemoth” dakedo, Neko to Machigawarete Elf Musume no Pet toshite Kurashitemasu) tells the story of a proud knight who dies in battle, only to be reincarnated as a behemoth—a powerful, S-ranked monster. To make things even stranger, baby behemoths look just like cute kittens! Now mistaken for a harmless cat, he’s taken in by a kind elf girl who keeps him as her pet. But despite his adorable appearance, he’s still a mighty warrior with the strength of an unstoppable monster. As he gets used to his new life, he must use his power to protect the elf who has given him a home.