Ayumi's mother moved the family to Yokohama after her husband's job transfer, prompting Ayumi's enrollment in a new school. Noticing her daughter's persistent loneliness and struggle to make friends, she actively encouraged Ayumi to socialize and adapt. She visibly expressed disappointment when Ayumi declined social opportunities, preferring instead to play video games at home. On one occasion, she explicitly advised Ayumi against excessive gaming, voicing her worries about Ayumi's adjustment. Her parenting balanced support with discipline. She showed care by motivating Ayumi's social engagement, yet adopted a stern demeanor whenever Ayumi ignored her guidance or retreated into isolation. A critical incident occurred when Fu-chan, the creature Ayumi befriended, unexpectedly consumed her after misreading Ayumi's emotional distress as hatred for the city. This event deeply traumatized Ayumi. Following the resolution of the Fusion crisis and Fu-chan's sacrifice, Ayumi's mother was restored unharmed alongside other erased entities, such as a neighbor's dog. Subsequent media depicts no substantial character development or expanded background beyond her role as Ayumi's concerned parent. Her later appearances are strictly cameos, including brief inclusions in the *New Stage* trilogy and group sequences in *All Stars F*, with no further exploration of her personality or history.