Ooh, YURI!
The setting takes place in school. The girls are high school students though they don’t look like it. ^_^; Sai, who looks girly and innocent, is a lesbian. She admitted it to Aya, but Aya hardly minded at all. But she told Sai that she won’t forgive her if she made any moves to her. They actually did it in the end of this chapter, but Aya rans away still in denial. She tells Sai that she’s hetero and doing it with her and being a lesbian are different things.
GoooooD!!!!