Shou leads Callings, the male prism group, and despite his reputation as the perfect guy, he's got a temper that comes out when things push him far enough. He's got light brown hair and originally designed Prism Stone—the clothes shop famous for its stone-embedded designs that later became Aira's signature look.
When Aira first showed up, Shou wasn't impressed with her abilities. But he gradually warmed up to her, especially after she collaborated with him on a new clothing design. That initial forehead kiss when they met set the tone for what became a closer relationship. These days, he's genuinely protective of Aira, often worried whenever she takes on something risky or pushes herself too hard. Fans often note how his concern for her shows just how much his opinion of her has shifted from those early days.
Content compiled by AnimeList.moe from publicly available sources.