Plot: The Screw Kingdom is a land where humans and VocaBots live in symbiosis, united by the screws they hold dear. Prince Nejiru is given a Screw Soul on his birthday, which leads him to his very own VocaBot, who awakens with a huge fart! Nejiru and his new bot, Heybot, then return to the kingdom to challenge his father to a VocaBattle for the throne!