I Can't Believe I Slept With You!

Not only is 24-year-old Chiyo Koduka wallowing in self-pity after quitting her job, she's also three months behind on her rent. Her 19-year-old landlady proposes an unusual solution: perform favors for her in exchange for the owed money – with the first being that the two sleep together. An arrangement is made where the landlord moves in with Chiyo to make the transfer of these “favors” easier but there might be another reason behind this arrangement.

Volumes

3 in the canonical sequence

English packaging

3 books, 3 releases

Publishers

Seven Seas Entertainment

Also known as

Even if It Was Just Once, I Regret It, Ichido Dake Demo, Kōkai Shitemasu., 一度だけでも、後悔してます。