Hiroyuki Miyazawa, husband to Miyako and father of Yukino, Tsukino, and Kano, prioritizes family above all—a value forged after being orphaned and raised by his grandfather. Miyako, who lost her mother young, mirrors this devotion. The couple’s bond formed in childhood and solidified into marriage immediately after high school, a choice that sparked immediate conflict with Miyako’s father, a police officer who once physically confronted him over their union. Their marriage endured through mutual empathy and parallel experiences of familial loss. Characterized by an easygoing demeanor, Hiroyuki champions his daughters’ autonomy, exemplified when he supports Yukino through academic struggles rather than enforcing discipline. However, protective instincts surface when Yukino begins a romance with Soichiro Arima—he initially resists but softens upon recognizing the young man’s sincerity. His affection manifests in playful gestures, like sporting a “Daughter Love” T-shirt that evolves into a symbolic artifact, later borrowed by Soichiro during a storm. Though often met with his daughters’ teasing or blunt retorts, he responds with exaggerated pouts rather than reproach, highlighting his humor and patience. A pivotal moment arrives when Yukino announces her pregnancy and decision to marry post-graduation. Though visibly shaken, Hiroyuki honors her agency, demonstrating hard-won equilibrium between paternal care and faith in his children’s maturity. His partnership with Miyako remains steadfast, blending unwavering support with playful rapport. Rooted in childhood orphanhood and early clashes with authority figures like his law-enforcement father-in-law, these formative experiences forge Hiroyuki’s compassionate resilience and drive to cultivate a nurturing home where his daughters develop self-assurance.