Āya Saitō is a main character from the yuri OVA Kuttsukiboshi. she is the classmate and lover of Kiiko. She likes to perform experiments with Kiiko's powers. She's a friendly and charming girl.
- She wants to make Kīko's powers and love a secret between them. The intertwined stars she bought online then gave Kīko to separate them using her powers, for when they separated by a supernatural force, their wish will come true in a new world.
- Everyday since she kissed Kīko under a tree in sunset to receive its power, she does lovemaking with her.
- When she and Kīko where on the stairs she stole a kiss from her, after she was preparing an eyelashes curler and a mascara to put some makeup on her.
- In the classroom, she was sweating after her kiss with Kīko so she stripped herself to start the lovemaking.
- The secret private bath time for her and Kīko is full of kisses.
- It just tempts her when Kīko gets all embarrassed.
- Her favorite flavor of ice cream is the one which tastes like Kīko's boobs.
- She knows that she loves Kīko so much that she wilted to the idea of being separated from her.
- Unnoticeable by Kīko, she advanced her leg to touch her vagina to stir her up under the studying table.
- Chilled Kīko sounds delicious to her.
- Even in the train, she seduced Kīko to touch her, in return she performed cunnilingus on her.
- Because she was able to meet Kīko, she's glad she gave it a chance, for an incredible thing have happened, the miracle of their love which transit them to another magical planet.
- As long as Kīko is with her, she is glad.
- The more she and Kīko wish with their fingers interlocked, the more their wish comes true, if they can stay the way they are now, it doesn't matter if they disappear because those interwined stars in that sky will watch over them.
- In the PE shed, she lured Kīko using her lost phone to lock her in several days feeding her and making love with her with her hands tied.
- For the last time, she have Kīko in her bath tub because she was leaving Japan the next day, in other words, the experiment of the intertwined stars necklace was finished, she'll keep her secret, so she wanted to make love tonight with Kīko as many times as they can.
- She enjoys Kiiko's company, and loves to tease her sexually.
- She is usually holding Kiiko's hand.
- She confessed her love to Kiiko in the next OVA.