"Territory of Light" follows the story of a young woman navigating life in Tokyo after separating from her husband. Over the course of a year, she grapples with the challenges of single motherhood, her evolving identity, and the quest for independence, all while living in an apartment bathed in disconcertingly bright light. The novel poignantly captures her emotional landscape as she experiences moments of joy, the trials of raising a child alone, and the struggle to find peace and a sense of home in her new reality.