Yasuko Nonomura, an auburn-haired Japanese housewife with petrol-hued eyes, navigates a fractured role as mother to Ami and Hiroshi within a household entangled in familial conflict and simmering tension. Her exposure to the siblings’ romantic entanglement culminates in her sending Hiroshi abroad for studies, severing the siblings’ bond. Marital discord escalates when her husband seeks divorce, deepening the family’s fractures. Interactions with Ami are marked by sharp disapproval, often chastising her daughter during strained exchanges that highlight their fractured rapport. Yasuko’s decisions fuel Ami’s emotional turmoil, influencing her abrupt exit from an idol career and confrontation of buried insecurities. This dynamic indirectly propels Ami’s eventual departure to London, framing it as a symbolic rupture from domestic confines.