Not for Sale is a oneshot Yuri Genre manga by Shuninta Amano, focusing on a relationship between two girls that got started when one of them paid the other to have sex with her, but goes completely off the rails very soon.
The manga contains examples of following tropes:
- Compensated Dating: What Saeko is mostly known for.
- Cute Little Fang: Michiko sports one, indicative of her easy-going personality.
- Flowers of Romance: Saeko's fall into love with Michiko begins when the latter "transmutes" a pack of old bills the former got from a client into a wonderful bouquet for her. Even though Saeko's doesn't like flowers much and throws them away, she is touched by the gesture.
- Grand Romantic Gesture: Saeko's throwing away her ill-gained money doubles as a symbolic gesture of her discarding her old life and beginning it from scratch with Michiko.
- In Love with the Mark: Kind of, except without the murder part. Michiko hires Saeko to have sex with her, but Saeko falls in love with her before long and refuses to take money for making love with the person she loves.
- Love Hotel: Saeko's "workplace".
- Schoolgirl Lesbians: What Michiko and Saeko end up as.
- Screw the Money, I Have Rules!: Saeko returns Michiko's money when she realizes she has fallen in love with her. Also, in the end, she also throws away all the money she received from her clients.