Multi Nana-iro is a member of Team Persona, the protagonist team in the Beyblade X anime and manga. She is a tritagonist and a professional Blader who also works as a Bey Crafter, a builder and designer of Beyblades. She is known for her ability to master different styles of Beyblade and for her signature quick outfit changes, which correspond to the type of Beyblade she is using. Her appearance includes black hair with rainbow-colored streaks and black eyes, and she often wears a gray headband with horn-like decorations. Multi grew up battling her older sister, Sigrid, and lost to her nearly ten thousand times. This drove her to become a Pro Blader and eventually form a one-person team called Rainbow. She later joined Team Persona alongside Jaxon Cross and Robin Kazami, aiming to climb the ranks of The X, the top tier of Beyblade competition. Multi is cheerful, optimistic, resourceful, and known for her sarcastic wit. She is a popular social media influencer with millions of followers. Her motivations include surpassing her sister, reaching the top of The X, and supporting her teammates through her Beyblade crafting skills. She frequently crafts Beyblades tailored to her teammates’ fighting styles. In the story, Multi acts as a strategic thinker and a source of creativity, often devising unconventional battle tactics. Her relationship with her sister Sigrid evolves from a bitter rivalry into a more settled dynamic after they reconcile. She also develops close bonds with Robin and Jaxon, acting as a steady and analytical presence within the team. Multi’s development includes overcoming self-doubt after facing advanced Beyblade technology and regaining her confidence as a Bey Crafter. She is noted for her ability to think outside the box and adapt to any opponent. Multi uses multiple Beyblades, primarily Wizard-type Beyblades for stamina and strategy, and Knight-type Beyblades for defense. Her special moves include Mirage Parry, performed with Arrow Wizard to create afterimages and redirect attacks; Raining Lance, performed with Lance Knight for a powerful downward strike; and Helm Impact and Mirror Reflection, her Xtreme Dash techniques that counterattack opponents. She also uses Sylphide Breath, a technique that restabilizes her Beyblade and drains the opponent’s stamina. Her Launch Power is recorded at seven thousand. Multi’s name reflects her theme of multiplicity and the seven colors of the rainbow, and she is known for her ability to excel in multiple roles as a Blader, Bey Crafter, and influencer.