Enter Sefiria, a baby harboring a perilous secret - memories of a past life as a Japanese office worker. Determined to evade the constraints of her former rigid society, Sefiria recalls the wisdom: ‘At ten, excel; at fifteen, astound; at twenty, blend in.’ In a world where adulthood commences at fifteen, armed with insights from her previous existence, can Sefiria carve a path as a youthful prodigy, reshape her reality, and secure a tranquil existence that resonates with Japanese readers seeking escapism?