Jinshi Saeki is a central character in the anime series 'Kusuriya no Hitorigoto.' He serves as a high-ranking eunuch in the imperial court, known for his exceptional beauty and intelligence. Despite his enigmatic nature, Jinshi plays a crucial role in the series as he often assists the protagonist, Maomao, in unraveling various mysteries within the court. His charm and wit make him a pivotal figure in the narrative, as he navigates the complex political landscape while maintaining a mysterious air about his true motives and identity.