Kenta Satozuka is a pragmatic third-year Business Administration student who leads and plays guitar for the band GYROAXIA, originally based in Sapporo before relocating to Tokyo's Nishishinjuku for the LIVE ROYALE FESTIVAL. As the older brother of Argonavis bassist Wataru Matoba, he maintains protective concern despite their strained relationship stemming from their parents' divorce and separate households.

Kenta employs a results-driven approach, excelling at gathering intelligence on rival bands to elevate GYROAXIA's standing. Though comparatively approachable, he displays coldness toward bandmates—including vocalist Nayuta Asahi—admiring Nayuta's vocal talent professionally without personal regard. His musical past includes a dissolved high school band with Argonavis guitarist Yuto Goryo and GYROAXIA guitarist Reon Misono, where Kenta handled lead bass and vocals. He later founded GYROAXIA after recruiting Nayuta solely for his musical prowess.

Kenta avoids disturbances and sake, favoring wine. Born October 22 (Libra), he stands 171 cm tall and weighs 59 kg. After GYROAXIA's move to Tokyo, he transferred to Kamogawa Music College's Faculty of Management. The band's cat Nyankotarou, adopted by Nayuta in Sapporo, shares Nayuta's solitary temperament.