I Manage a Monster Apartment

The Story

Victor needs cash to save his sick sister, so he accepts a job managing a haunted apartment for a hundred thousand dollars a day. The building is home to terrifying S-rank monsters who can destroy the world. When he punches a succubus, he remotely kills a giant beast and stops a tsunami. He absorbs the creature's power. This action helps him earn money and protect the planet. He faces deeper dangers as he works in the abyss.