Yoshimasa Hosoya as Sentaro Kawabuchi

Sentaro Kawabuchi

Played by Yoshimasa Hosoya · Kids on the Slope · Season 1 (2012)
drummerdelinquentjazzdeuteragonistcoming-of-age
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Fan Heat

Character Arc

Sentaro Kawabuchi is the tall, hot-tempered classmate whose reputation for brawling makes him feared at school, but whose easygoing warmth quickly wins over Kaoru. A passionate, self-taught jazz drummer, Sentaro is the one who pulls the buttoned-up Kaoru into the music, and his instinctive, freewheeling style stands in deliberate contrast to Kaoru's classical precision.

Beneath the bravado, Sentaro carries the weight of a difficult home life. As the eldest of several siblings born into a large family with a complicated background, he wrestles with questions of identity and belonging, and his sense of not quite fitting in fuels both his rebelliousness and his devotion to his friends and faith.

His relationships drive much of the series' emotional turbulence: Ritsuko harbors deep feelings for him, while he is drawn to the older Yurika, and his bond with Kaoru is repeatedly tested by misunderstandings and the pressures of growing up. Sentaro's arc moves toward reckoning with his past and his place in the world, even as the friendships forged over jazz remain his anchor.

Key Episodes

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🌐 Fan Ecosystem

Fan Heat Index Breakdown

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Character Analysis & Cultural Significance

Sentaro Kawabuchi is one of the central figures in Kids on the Slope, a anime/music/drama/coming-of-age/romance/slice-of-life series that aired on Fuji TV (noitaminA) from 2012. Within the narrative of Kids on the Slope, Sentaro Kawabuchi serves as a pivotal character whose decisions and relationships drive key story arcs throughout Season 1 (2012). The character's journey has been central to many of the show's most memorable and discussed moments.

Portrayed by Yoshimasa Hosoya, Sentaro Kawabuchi has become one of the most recognizable characters in modern television. Yoshimasa Hosoya's performance brings nuance and depth to the role, creating a character that resonates with audiences on both intellectual and emotional levels. The casting of Yoshimasa Hosoya has been widely praised by both critics and fans as essential to the character's impact and the show's success.

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? Frequently Asked Questions

Sentaro Kawabuchi is voiced in Japanese by seiyu Yoshimasa Hosoya. In the English dub, the role is performed by Andrew Love.

Sentaro is the drummer and the friend who first introduces Kaoru to jazz. His energetic, improvisational drumming style is contrasted throughout the series with Kaoru's classical training.