Ryuu

Ryuu stands out as the youngest court pharmacist ever appointed in Wistal City, having demonstrated extraordinary talent at just twelve years old. Known for his composed demeanor, he tends to lose himself entirely in the study of medicinal herbs—particularly poisonous varieties—often becoming oblivious to those around him. He served as a vital mentor and senior colleague to Shirayuki within the palace pharmacy, guiding her growth with his deep expertise. Their shared passion for pharmacology eventually led them both northward to the territory of Lilias, where they embarked on collaborative research together.