The father of Sōma Yukihira, and owner of the diner Yukihira in the Sumire Shopping District. His passion for cooking knows no bounds and his skill is world-class. As the sole parental-figure and family member in Sōma's life, he is a mentor, teacher, and rival to his son. Like Sōma, Jōichirō is laid-back but professional and has a serious side that emerges when he is cooking. The two share the same habit of creating horrible experimental dishes. Jōichirō is supportive of his son but does occasionally like to see Sōma stressed and frustrated by challenging him to many cook-offs – always ending in Jōichirō's victory – to show him how much he has to grow. He left home to work abroad and sent his son to Tōtsuki Academy, telling Sōma that he needs to succeed in Tōtsuki if he ever wants to surpass him.
