Fuki Irino is Heigo Irino's wife and Nagomu Irino's mother. Her name combines the characters for "wealth, abundance" (富) and "chronicle" (紀). She has brown eyes and brown hair typically cut to ear length. Her regular attire features a green apron layered beneath a white full apron. During Nagomu's decade-long absence from the family wagashi store, she became a foster mother to Itsuka Yukihira, granting her room and board in exchange for shop assistance. When Nagomu returned, Fuki guided him to support Itsuka as a surrogate father figure instead of immediately pursuing store inheritance, underscoring Itsuka's entrenched role in the household. This counsel establishes Fuki as a stabilizing force in the family, easing the evolving dynamic between Nagomu and Itsuka.