Johan Valdec, Director and Head Researcher of the Kingdom of Salutania's Medicinal Flora Research Institute, occupies a noble position as the second son of Count Valdec. He possesses peach skin, long brown hair often secured in a low ponytail, and hazel eyes, dressing in a lab coat over a traditional English-style uniform. Professionally adept and personally caring, especially towards friends, he deliberately distances himself from aristocratic society's complex politics, contributing to his unmarried status despite noblewomen's interest. His capabilities include proficiency in earth magic and recognition as an intelligent, outstanding researcher. A significant childhood friend of Albert Hawke, Commander of the Third Order of Knights, Johan shares a history of sneaking into the capital together during their youth. He frequently observes and gently teases Albert about his romantic interest in Sei Takanashi, reflecting their close bond. Following Sei Takanashi's summoning and subsequent neglect by Crown Prince Kyle, Johan becomes her protective guardian, welcoming her into the institute as both employer and protector. He shields her from dangerous palace requests and uncomfortable rewards, operates on her behalf when necessary, and vigilantly monitors her safety. He is among the first to identify her exceptional abilities, noting her potions exhibit 50% greater effectiveness than standard versions. He also values her innovative applications of medicinal herbs, such as incorporating them into health-promoting dishes for illness prevention, beyond traditional medicinal uses. At the institute, he oversees researchers like Jude, whom he assigns to mentor Sei in potion-making basics. Johan, Jude, and Sei regularly share afternoon tea. While Johan recognizes Sei’s potential connection to the Saint’s powers early on, his role focuses steadfastly on supporting her growth and safety, not personal ambition. His portrayal remains consistent as a stabilizing influence within the institute and a protective, observant figure for Sei and Albert.