Ane ni Naritai Ane VS Yuri ni Naritai Imouto
姉になりたい義姉VS百合になりたい義妹
Shio returns home to discover her mother has remarried and will be traveling for work with her new husband, leaving Shio in charge of her new stepsister, Kafka. Barely older than Kafka, Shio worries that her stepsister will attempt to claim the role of the older sister. Meanwhile, Kafka is focused on winning Shio's affection, as she considers Shio to be her first love.
