An incompetent demon master picked up a domineering and vicious thousand-year-old bamboo demon from a garbage dump because of his kindness. From then on, he was suppressed by it forever. And because the three monsters under him vigorously publicized his enthusiastic behavior, his great deeds spread like wildfire in the monster world, causing him various inexplicable supernatural incidents. From then on, this incompetent monster controller completely lived a happy life of being suppressed, subduing monsters, and depressed at the same time.