TV-Series
Description
Ichiro Yamada, performing as MC.B.B, is the eldest son of the Yamada family, managing Odd-Jobs Yamada while leading the rap group Buster Bros!!! with brothers Jiro and Saburo. Born July 26, he stands 185 cm tall at age 19, sporting chin-length black hair, heterochromia (scarlet left eye, forest green right eye), and a mole beneath his left eye. His signature attire includes a red varsity jacket marked "BB" and "01," dark jeans, red headphones, and a Hypnosis Mic adorned with "BB"-themed rings.

Abandoned by father Rei Amayado, Ichiro and his siblings grew up in an Ikebukuro orphanage. When the director incurred debt, he falsified his age for construction work. After defending a harassed coworker, he joined the gang Stairway to Heaven as a debt collector. Discovering the orphanage director’s fund mismanagement and coworker Samejima bullying his brothers, Ichiro assaulted Samejima, fracturing their sibling bonds. Later, Stairway to Heaven ordered him to confront rival leader Kuko Harai. A violent clash broke Ichiro’s arm, prompting Kuko to break his own for a fair rematch, forging mutual respect and their duo Naughty Busters.

Operating under Stairway to Heaven during Ikebukuro’s turf wars, Naughty Busters clashed with Mad Comic Dialogue. Learning their conflict was orchestrated by Mozuku to eliminate rivals, Ichiro and Kuko allied with Mad Comic Dialogue leaders Samatoki Aohitsugi and Sasara Nurude to defeat Mozuku, subsequently joining their ranks. When Mozuku kidnapped Jiro, Saburo, and Samatoki’s sister Nemu, Ichiro and Samatoki struck a deal with officer Jyuto Iruma for their rescue. A rap battle aided by Jakurai Jinguji and Ramuda Amemura secured victory, disbanding Stairway to Heaven.

Homeless and unemployed, Ichiro juggled jobs to support his brothers. His reputation for helping others led Samatoki to suggest formalizing services as Odd-Jobs Yamada. Ramuda persistently recruited Ichiro and Samatoki after witnessing their strength. Ichiro declined until Kuko attacked him unexpectedly, severing their friendship. Confiding in Samatoki, Ichiro prepared for a rap battle against Jakurai and Ramuda. Their performance impressed the pair, forming The Dirty Dawg. Internal distrust plagued the group until shared personal histories through rap fostered unity. Chuohku dissolved the alliance by staging a battle between Ichiro and Samatoki, falsely tying the outcome to the Yamada brothers’ safety. Samatoki’s victory shattered trust, disbanding the group.

Currently, Ichiro balances leading Buster Bros!!! with odd jobs and community aid. Approachable yet fiercely protective, he champions justice but holds grudges—particularly against Samatoki despite their past alliance. He values communal harmony, using rap battles to resolve conflicts and dismantle societal barriers. His rap ability, Critical Blow, unleashes attacks exponentially stronger than normal. Off-duty, he enjoys anime and light novels, reacting intensely to their criticism. He despises bullies, living by a philosophy echoed in his recurring quote from Charlie Chaplin’s *The Circus*: "You’ll never find a rainbow if you’re looking down." Trivia notes his diverse work history, including debt collection and construction, and his hobby of filming promotional videos.