Is this a Zombie? OVA

Life after death takes an unexpected turn for Ayumu Aikawa when a chance encounter with a serial killer leaves him among the ranks of the undead. But this isn't your typical zombie apocalypse; Ayumu finds himself resurrected by a necromancer, entangled with a magical girl, and living under the same roof as a vampire ninja. His new existence is a chaotic whirlwind of supernatural housemates, bizarre powers, and the constant threat of monstrous enemies, all while trying to maintain some semblance of a normal high school life. These side stories deliver even more of the signature absurdity and irreverent humor fans have come to expect. Prepare for a fresh dose of magical girl antics, undead hijinks, and the ever-present challenge of navigating a harem of powerful, eccentric women. It’s a riotous romp through the world of the supernatural, proving that even after death, things can get a whole lot weirder.

✦ AI-drafted summary