Ashibe's mother, whose full name is revealed to be Ashiya Kaoru, is the wife of a carpenter and the primary caregiver for her energetic son, Ashibe, and the family's pet seal pup, Goma-chan. She is portrayed as a fundamentally serious and responsible woman who manages all household chores with competence and efficiency. Her daily life revolves around maintaining the family home in their modest apartment and looking after her husband and son. Despite her earnest and diligent nature, she possesses a playful side, often engaging in small, mischievous pranks. This mischievous streak is most frequently directed at Goma-chan, whom she sometimes playfully teases or uses as an impromptu cushion, demonstrating her view of the seal as a full, if unconventional, member of the family. Her motivation stems from a place of care and stability for her household, blending practical homemaking with a warm, if occasionally cheeky, affection for her family. In the story, she serves as the steady, grounding presence in the Ashiya household, balancing the more impulsive and boisterous personalities of her husband, a skilled carpenter with a hidden past as the heir to a large corporation, and her son Ashibe. Her key relationship is with Ashibe, as his mother, and with Goma-chan, whom she treats as a beloved pet and childlike figure. While her personality remains largely consistent throughout the series, she does not undergo significant dramatic development, instead providing a reliable and caring anchor for the series' comedic and slice-of-life events. Her abilities are not extraordinary but are focused on her domestic skills, as she is noted to handle all housework without fault.