Beheneko: The Elf-Girl's Cat is Secretly an S-Ranked Monster!

After falling in battle against the forces of darkness, a valiant knight expects to be reborn as humanity’s next great champion. Instead, he awakens in an unfamiliar body, discovering that his new form is a behemoth—one of the most overwhelmingly powerful monsters in existence. However, there is one highly inconvenient complication: a juvenile behemoth bears a striking resemblance to an ordinary, irresistibly cute house cat. His bewildering second life takes yet another unexpected turn when a beautiful elven adventurer stumbles upon him. Rather than slaying what she assumes to be a mere monster, she rescues the helpless-looking creature from the brink of death and takes him in. Now trapped between his noble past as a sworn protector and his present reality as a misunderstood beast, the former knight must navigate this bizarre existence. His extraordinary journey as both a pampered feline companion and a secretly formidable warrior has only just begun.