I Can’t Believe I Slept With You! vol. 1 (yuri manga)

Twenty-four-year-old Koduka Chiyo quit her job and is wallowing in self-pity. She’s also three months behind on her rent. Her landlady proposes an unusual solution: sleep with her, and she’ll help with the debt, the filthy apartment, and the loneliness. Can true love develop from an arrangement that started with a bang?