Rantaro Kiyama

Gender - Male.
Birthday - April 30th.
Return - 15 years.
Bey - Roktavor Heavy Survive.
Occupation: Student, blader, semi-finalist.
Zodiac sign - Taurus.

Rantaro is a tall, fair-skinned boy for his age, with light-colored hair styled in a pompadour and brown eyes. He wears a bandage across the bridge of his nose and has a habit of holding an orange-red lollipop and a large white paper fan in his mouth.

In Burst and Burst Evolution, his attire consists of a black gakuran jacket draped over his shoulders like a cloak, a dark red undershirt underneath, black gakuran pants, a white belt, and brown slip-on shoes. During battles in Burst, he initially carried comics tucked into his belt (in the manga, these are CoroCoro comics).

In the anime Surge, he retains his full Gakuran costume, but the jacket has a red lining and gold buttons, and he wears an orange shirt, a blue belt, and brown shoes.

ALSO KNOWN AS -
Kumicho.
Honcho.
A courageous man.
Smooth Samurai.

Rantaro is very self-assured, often calling himself the Big Boss, and is adept at circumventing the school's strict rules. He can be quite simple-minded and naive, and demonstrates limited insight (for example, when he failed to recognize Valt's distress over Shu's shoulder injury, and when Ken felt lonely in Grandpa Xander's dojo). Despite this, he is honest and has a strong sense of justice.

Rantaro shares many similarities with Valt Aoi in personality. Naturally honest, he openly displays many of his emotions, whether happiness, anger, sadness, or joy. He wants to appear tough, but he's actually a softie on the inside. He's often the first to cheer his teammates up before a fight and offers them moral support when they're feeling down. Furthermore, Rantaro is shown to get along very well with younger children, which in hindsight foreshadows his close relationship with his younger brother, Ranjiro. It's revealed that Rantaro's greatest fear is unicorns, though the origin of this fear is unknown. His favorite foods are tacos and meat. He once threw a tantrum when Wakiya stole an entire plate of skewers intended for tacos, leaving him with only a single green onion.
As shown several times in the anime, Rantaro doesn't like it when his jacket is called a cloak.

In "Surge," Rantaro becomes much wiser, sharing advice with Hikaru and Hyuga, teaching them the importance of training, rest, and caring for each other. He is a caring coach to the brothers and is friendly towards them. However, he often displays this friendliness with restraint, preferring to be more strict with Hikaru and Hyuga, striving to make them stronger, not hesitating to yell at them or lecture them. Despite this, he shows compassion for Hizashi when either of them is sad. This was demonstrated when he advised Hikaru to let his emotions out instead of becoming depressed. He also showed compassion for Hyuga, asking him what happened when he was overexerted during training.
In "Surge," Rantaro displays a much greater sense of responsibility than in previous seasons. When Hyuga got lost right before the Legend Festival, he took full responsibility, claiming it was his fault for his student's disappearance. He also saved Silas during the battle, choosing to sacrifice his Beyblade despite his strained relationship with him.