Youhei Umino

Youhei Umino serves as the proprietor of the restaurant 'Unino-tei' and is the adoptive father of Nagi Umino. Once a delinquent in his younger days, he carries a rugged appearance and is often seen wearing sunglasses. Known for his frank and spirited personality, he holds deep affection for his children. As one of the parties involved in a baby-swapping incident, he guards his family with passionate intensity, standing out as a warmhearted and deeply humane parental figure amid the story's tangled engagement relationships.