Jude serves as a researcher at the Kingdom of Salutania's Medicinal Flora Research Institute. Born the fifth son of a prominent merchant family, his commoner status is offset by financial stability. A rare ability to wield water-attributed magic secured him entry to the Royal Academy, an institution typically inaccessible to non-nobles. He possesses peach-toned skin and mid-length green hair. His researcher role is reflected in his typical attire: a white lab coat worn over an orange vest, green pants, and brown shoes. Jude exhibits a friendly and compassionate demeanor, consistently demonstrating patience and approachability in interactions. Professionally, Jude specializes in potion-making and medicinal plant studies. He trains new researchers, most notably instructing Sei Takanashi in foundational potion creation techniques and the practical application of magic within their world. His guidance includes teaching her basic potion production and introducing her to the institute's operations. His expertise also encompasses fieldwork, such as identifying and harvesting ingredients during forest expeditions. Jude maintains collegial relationships with key figures like Johan Valdec, the institute director, and Albert Hawke, commander of the Third Order of Knights. He collaborates with them to support Sei's integration into the institute and her broader role within the kingdom. Following Sei's official recognition as the Saint, Jude continues his research work while remaining part of her support network. His involvement in significant events includes accompanying Sei during her initial explorations of the palace gardens, facilitating her introduction to the research institute, and participating in efforts to combat monster-related threats affecting the kingdom. Throughout these events, he consistently blends academic mentorship with practical contributions to the institute's objectives.