Ashibe's mother anchors the Ashiya household, actively managing domestic duties while navigating the humorous chaos generated by her family. Her daily life centers on maintaining household routines, which are frequently disrupted by her son Ashibe's antics with his pet seal Goma-chan or her husband's forgetfulness. Frustration flares when Ashibe feeds Goma-chan the entire household food supply, including special items like canned crab intended as gifts, leaving nothing for meals.

She balances patience and exasperation. When unexpectedly delayed returning home one evening, Ashibe and his father revisit past incidents where their actions caused her distress, like thoughtlessly consuming her portion of food or overlooking her contributions. These reflections reveal her occasional feelings of being unappreciated within the family dynamic, though situations are played for comedy. Despite frustrations, she demonstrates care through small actions, such as leaving notes for her family—notes sometimes ignored, adding to her challenges.

She participates in Ashibe's school activities, attending events like open houses where she observes his classroom interactions and witnesses unconventional teaching methods involving Goma-chan and other stuffed animals. Her presence highlights her role as a supportive parent engaged in her child's education.

Her relationship with Goma-chan reflects the family's affectionate dynamic. She tolerates the seal's presence and disruptions, though her patience can wear thin, such as when Goma-chan throws tantrums over denied treats like fatty tuna at the market. These moments integrate her into the series' comedic, relatable family life.