Saegusa's work explores themes of femininity, vulnerability, and the search for identity. Her photographs often feature women in fragile, transitional states – daydreaming, sleeping, or immersed in nature. These images evoke a sense of vulnerability, yet simultaneously convey a sense of strength and resilience.
While she avoids the mainstream, Saegusa’s influence on commercial art is undeniable. In Japan, the adjective Saegusa-esque (Saegusa-teki) has entered the lexicon of art directors. It denotes a specific brief: chitose saegusa work
Saegusa has cited several inspirations for her work, including: Saegusa's work explores themes of femininity