Yuzuru Aoba serves as the older brother to Rinka Aoba. He possesses distinctive indigo hair extending to mid-neck length, flaring slightly in sections with thick face-framing bangs and a single curled cowlick. His eyes are dark teal, contrasting with pale skin in his depiction as a handsome young adult or teenager.

Gentle, kind, and easily excited, Yuzuru displays a scatterbrained demeanor. He offers guidance to lost or discouraged individuals, mirroring Meganee's supportive role. As a former cameraman at Prism Stone, his absentmindedness frequently drew chastisement from Meganee. Around episode 102, he transitioned to become manager of Dear Crown in Kirajuku.

Yuzuru's childhood closeness with Rinka involved them regularly pretending to host PriChan Casts, recording each other for their imaginary Pretty Channel. This activity ceased when Yuzuru prioritized time with other children, creating a temporary rift that distressed Rinka. Their sibling bond remains central to his character, reflecting his supportive yet occasionally distracted nature.

Outside his family, Yuzuru maintains friendships with childhood companions Ayumi Hanakura and Takaya Saegusa, having been teammates with them in the group Arrows. Etymologically, "Aoba" combines "blue" (青) and "leaf" (葉), referencing his hair color, while "Yuzuru" means "bowstring" or "to concede." His full name also forms a pun on Masakazu Hishida, a Pretty Rhythm series director, through an alternative kanji reading for "Yuzuru."