As Mutsuba-cho (Mutsuba Town) spaceship accelerates towards deep space following Zuwijou's (Zwijo) plan to defeat the Kyofu no Daio (King of Terror), Yuhi gets upset because he can't duel. Since Baruberugya (Valvelgear) has become his duel disk, he refuses to use another one, but Baruberugya is currently attached to the spaceship to boost it's speed and power. Yuhi decides to ask for the Baruberugya back to Asaka, since she's the president of Mutsuba Juki (Mutsuba Heavy Machinery), which controls Mutsuba-cho.