"He said he was an eight-tailed cat. At first, I refused to believe him. When someone suddenly breaks into your home, you can't just believe everything they say. Then he threw me, sofa and all, out of a seventeenth-floor window, and I immediately decided to trust him without question."
One fine young man spends his days slacking off, has no ambition, and is still in the throes of his chuunibyou phase. Then, one stormy night, he suddenly meets a mysterious man who claims to be an eight-tailed cat. He discovers that this cat is nothing like the benevolent, good-luck-bringing creatures of myth and legend...