Yo-kai Watch Shadowside: The Return of the Oni King

Thirty years have passed since the events of the original Youkai Watch series. Keita Amano, now an adult, once possessed a wristwatch that allowed him to command Youkai, which he used to make friends and complete various tasks. However, he lost his ability to see Youkai and the powerful wristwatch was hidden away, its existence potentially disrupting the balance between the human and Youkai worlds. The legend of the wristwatch has long been forgotten, but a new threat has emerged: the Onimaro virus, which spreads malevolent intentions and turns people into the demonic Kaodeka Oni, causing chaos in the city.