Ryuuma Shibayama of Baygoma Academy is an enigma—an emotionless boy with a hunchback and colorless eyes, whose launches are slow and weak. But when he finds a worthy opponent, a terrifying transformation occurs: red eyes, green hair, and a vicious, relentless voice. His Bey, Zigger Zombie, is a balance type with deadly abilities like Undead Ricochet and Undead Stamina, capable of burst finishes in a single hit. After taking second place in the Nationals only because Lui begged him to spare his Bey, Ryuuma trains alone in the woods, communicating with his unbreakable partner. When Shu Kurenai appears, Ryuuma finds his first true challenge. This story follows Ryuuma's journey from the start of Beyblade Burst, as he searches for opponents who can entertain him and unleash the monster within.