Ichido dake demo, Koukai Shitemasu.

A 24-year-old woman named Chiyo has left her job and is living in a messy apartment, struggling with debt and loneliness. Her landlord offers a deal: in exchange for a sexual encounter, she will receive financial and emotional support. After a single night together, they continue the arrangement. As their relationship progresses, it raises questions about self-discovery, personal responsibility, and whether a genuine bond can form from such an unconventional beginning.