Kyōsuke Hori, husband to Yuriko Hori and father of Kyouko and Souta Hori, stands tall at 180 cm (5'11") with messy shoulder-length gray hair and golden-brown eyes. His striking resemblance to Souta prompts Miyamura to initially confuse him for an older version of his son. Frequent work-related absences force Kyouko to manage household duties, straining their relationship as she resents his time away. Kyouko labels him rude, selfish, and forceful, citing his habit of inappropriate jokes during serious moments. She reacts violently to his behavior—striking him with a ladle when embarrassed—actions he dismisses as normalized "crazy domestic violence habits" within the family.
Despite this dynamic, his demeanor softens around Miyamura, whom he greets warmly and engages in lively conversations. He actively supports Kyouko and Miyamura's relationship, humorously discussing future baby names with Miyamura during their high school years. A habitual smoker, he is often seen lighting cigarettes upon returning home. Becoming a teenage parent when he fathered Kyouko in his late teens explains his current age of 36. Their distant relationship is further reflected in Kyouko’s practice of addressing him by his given name instead of a parental title.