Mother died shortly after Jun's birth, preceding the narrative events. Her absence forces Naho into adult responsibilities, caring for her infant brother while wrestling with stifled childhood desires. This burden strains Naho, fueling resentment toward Jun and deepening her urge to escape daily pressures.

Naho's unresolved feelings toward Mother surface in dreams accessed through the Dreamball Dealer. These visions depict an intact family with Mother, Father, and Naho, evoking both comfort and anxiety that mirror Naho's conflicted grief.

Mother's presence echoes through Jun's dreams, where Naho encounters her again, reinforcing her lasting psychological impact on both children. Naho's contemplation of forgetting Mother entirely—seen as potential emotional relief—underscores Mother's role as a persistent source of internal conflict. Ultimately, Mother embodies loss, unmet maternal guidance, and the complex emotional legacy shaping Naho's journey.