Kippei Uwajima is a high school student whose cheerful demeanor masks a turbulent delinquent past. Once a notorious figure in middle school, he famously overpowered thirty rivals alone, though the violence brought him no satisfaction. Driven by a resolve to change, he channeled this restless energy into joining the Beautification Club and the Going-Home Club, seeking purpose beyond brawls.

Clumsy and perpetually distracted, Kippei often struggles to focus on conversations, yet his unwavering optimism persists. His mischievous streak emerges through pranks, such as startling friends with a leaf blower—a habit that blends humor with chaos, sometimes fraying tensions within his circle.

Central to his story is his bond with Gin Kunishima, a fellow reformed delinquent. Together, they strive to heal the fractured dynamic between the Nijo twins, Yuto and Satoru. While club ties draw him closer to Yuto, Kippei maintains a warm, if occasionally meddling, rapport with Satoru, emphasizing his role as a peacemaker.

His uncomplicated tastes lean toward convenience-store fried chicken and long bike rides, grounding his unpredictable nature. The symbolism of his name—rooted in concepts of brilliance, peace, and earth—echoes the duality of his journey from past turmoil to current growth.

Details about his family or expanded storylines remain unexplored in existing sources.