It is in the private, fragmented worries and small joys of these girls that Gu Baini finds and uplifts them. Their fleeting yet boundless universes unfold daily—they are distant yet intimate, ambiguous yet candid, lost yet lucid, building rich inner worlds of their own.

This collection features five healing stories brimming with feminine strength, portraying ordinary yet unique "Particle Girls" as they navigate the pains of family, the maze of love and marriage, the struggles of career and work, and the unresolved emotions of daily life—all while seeking their true selves and illuminating their own paths.