Saori Makimura is a boarder at Coquelicot Manor, a boarding house overseen by the Matsuzaki family, where she shares living spaces with tenants like Miki Hokuto and Sachiko Hirokoji. She partakes in daily communal routines, including shared meals and household tasks.

During breakfasts, she discreetly avoids soy sauce, a preference often overlooked until dishes are already seasoned. Her quiet demeanor surfaces in brief, light exchanges with others. On one occasion, she arrives early to the kitchen before other residents and later accepts a soy sauce-seasoned meal with composed neutrality.

Her contributions to chores remain unspecified, though consistent. Artistic inclinations drive her to paint late into the night, resulting in fatigue and occasional skipped breakfasts—a pattern prompting Umi to gently inquire after her well-being, reflecting the household’s understated mutual care.