Oh Motoura, also known by his full name 元浦 央, is a 27-year-old former national-level volleyball player from Japan. Following retirement from professional competition, he accepted a coaching role at Aota Academy, first assigned to the boys' volleyball team. After that team dissolved due to an incident involving a member's expulsion, he was reassigned to coach the girls' team, viewing the change as a professional setback that risked damaging his reputation.

He has spiky silver-blue hair, dark grey eyes, and a near-constant habit of wearing sunglasses, maintaining a fit and handsome appearance consistent with his athletic background. Initially professional toward the girls' team, he gradually develops personal and romantic feelings for multiple players during training sessions, shifting their dynamic.

His coaching methods blend technical volleyball training with personalized attention, including specialized motivation for transfer student Nanase Morimura. Her exceptional volleyball skills emerge only when sexually aroused, necessitating intimate encounters to ensure peak match performance. His relationships extend to other players like team captain Shou Marui, who harbors an early romantic interest, and Kozue Nekoda, who openly pursues him with her sexuality.

A professional rivalry exists with Haruo Kabanishi, coach of O-Ring Academy's team. Kabanishi considers Motoura his arch-enemy, though Motoura initially does not recall their past connection, fueling competitive tension.

Across media adaptations, his character expands: sequel OVAs (Kaette Kita Court no Naka no Tenshitachi) depict him leading the team into intensive training camps for national tournaments after initial successes. The novel series further explores his romantic entanglements and coaching challenges, solidifying his dual role as mentor and object of affection within the team.