Sayaka Ichinose

Sakaya Ichinose is the main antagonist of the two-part hentai OVA series Cleavage and her model was used in the Meet and Fuck series of Flash Games. She is Yuuto Toudou's art teacher and second love interest. She is also Erika Toudou's love rival. Throughout the series she causes relationship problems for the step siblings all for her own lustful desires.

Ichinose makes her debut when she teaches her class on how to properly draw breasts She then personally shows Yuuto how to do it correctly and he is easily turned on by her. After Yuuto and Erika made love in the computer lab, she was revealed to be spying on them, saving lots of pictures and plans to use that to her advantage. The next morning, Ichinose sees Yuuto and Erika about to head home and then tells him about the assignment then drives off, however Erika quickly notices how Yuuto has a thing for her which causes him and Erika to argue. Then in college, she reminds Yuuto not to be late for a test. In the library, she catches Yuuto off gaurd, she then blackmails and seduces Yuuto into having affairs with her or else she'll expose his secret and he and Erika will be expelled. They first have an affair in her art class and then they have another affair in the schools swimming pool. Afterwards, Ichinose confesses her feelings for Yuuto. However, Erika eventually finds out about their affair and confronts them. Ichinose reveals to Erika that her plan was to steal Yuuto from her, but Erika then tries to take Yuuto back. Ichinose refuses to let this happen and she challenges Erika for his love by forcing herself on her. As a way to resolve this situation, Yuuto decides they can share him instead. Yuuto, Erika, and Ichinose, (now redeemed) all have a threesome and decides to live this new life style with Erika and Ichinose taking turns with Yuuto but still not getting along well.