The story takes place 30 years after the events of the first Youkai Watch television series. Keita Amano, an 11-year-old child who wore a wristwatch that could command Youkai, would make friends with the Youkai and do a variety of activities. The youngster, however, lost his capacity to perceive Youkai as he got older. The timepiece that could control Youkai was flung into oblivion beyond time and space because its presence threatened to upset the delicate balance between human and Youkai worlds. Very soon... The tale of the Youkai controlling wristwatch faded away. But then, after many, many years had gone, something happened... Onimaro, an outbreak Youkai virus, began afflicting persons with