Kenta Satozuka leads the band GYROAXIA while playing guitar. A third-year Business Administration university student, he projects an approachable exterior yet maintains a cold detachment, particularly toward bandmates like vocalist Nayuta Asahi. His admiration for Nayuta focuses solely on musical talent, fueling dedicated efforts to promote Nayuta's name. Kenta leverages proficient intelligence gathering to monitor rival bands and other targets.

Family history significantly shapes him; he is the older brother of Wataru Matoba, bassist for Argonavis. Their parents' divorce separated them into different households, fostering Wataru's bitterness. Despite this estrangement, Kenta displays unconditional love and protectiveness toward his younger brother, offering advice and support during Wataru's difficulties—a persistent care contrasting his usual detachment.

Musically, Kenta formed a high school band with Yuto and Reon, serving as lead bassist and vocalist before encountering Nayuta Asahi. Inviting Nayuta to join ultimately birthed GYROAXIA. He later transferred to Kamogawa Music College Faculty of Management after moving to Tokyo.

Within GYROAXIA, Kenta generally keeps distance, yet shares a genuine friendship with bassist Ryo Akebo—the sole member who understands and engages his alien-themed fantasies. His name "Kenta" combines characters meaning "intelligent, wise, wisdom, cleverness" and "riot," while "Satozuka" translates to "village mound."