He's the son of Mr. and Mrs. Yamanashi, the founders of Perception Art. After losing both parents in an accident ten years ago—where he was also injured—he was raised by his extended family. The accident itself seems to have left him with an unusual gift: he can perceive far more from perception art than most people can. He's able to read not just the artwork itself, but the creator's thoughts and emotional state at the time it was made.
Growing up, he always wanted to follow in his parents' footsteps as a perception artist. He inherited their talent and has combined that with genuine dedication, making him one of the most naturally gifted artists of his generation. His ability to see deeper into perception art—a skill that might stem from the trauma of that accident—sets him apart from his peers and gives him a unique perspective on the medium his family helped create.
Content compiled by AnimeList.moe from publicly available sources.