Yuriko Hori, mother to Kyouko and Souta and wife to Kyousuke Hori, carries herself with a serene grace accentuated by long brown hair and olive eyes that remain softly closed beneath a gentle smile—except when shock or maternal worry parts her lids. Her high school self mirrors Kyouko’s features, complete with shoulder-length dark brown hair occasionally swept into a low ponytail. Beneath her tranquil kindness lies a razor-sharp wit, playfully aimed at her husband through teasing remarks or deliberate indifference, starkly contrasting her affectionate warmth toward others. This duality traces back to her youth, where a fiercely assertive streak emerged when confronting a harassing classmate, prompting Kyousuke to note the “thorns” hidden beneath her gentle facade. A former student council senior to Kyousuke, her past includes a brief separation during their courtship, adding complexity to their enduring bond. Frequent work absences require her to entrust Kyouko with household duties and Souta’s care, nurturing the girl’s independence and domestic prowess. Her maternal instincts extend warmly to Izumi Miyamura, whom she embraces as a surrogate son, openly favoring him over Kyousuke in lighthearted moments that spark familial rivalry. She eagerly includes Miyamura in shared meals, radiating delight at his presence. While composed, she wields sarcasm and mischievous neglect toward her husband, exemplified by jests like omitting his place at the table. Her culinary repertoire leans heavily on pre-made ingredients, with curry standing as her signature dish. Despite her hectic schedule, she prioritizes her family’s welfare, expressing devotion through trust in Kyouko’s competence and wholehearted inclusion of Miyamura. Her history intertwines with Kyousuke and Takeru Sengoku from shared high school days and student council endeavors. The echoes of her maiden name, Koyonagi (or Koyanagi), and past marital tensions further shape her dynamic with Kyousuke. Across all contexts, she embodies a harmonious mix of quiet authority, understated humor, and unshakable dedication to her loved ones.