Asai, Saki

Yamato's childhood friend from Hiroshima. She also happens to be the same girl from the original firefly confession. Starting next year she will be attending a fashion school in Tokyo. For now, she is staying at Ayano’s dormitory for about a week while visiting. She often embarrasses and pesters Yamato. It has been revealed that during the original firefly confession she did not reject him as initially thought, but could not give an answer because Yamato ran away and avoided her afterwards. She plans on attending Touto University, not a vocational school like Ayano thought. She encouraged Yamato to also attend and made him pinky swear that they would go together. She is very perceptive when it comes to Yamato to the point that she can accurately guess his thoughts and feelings. She has hinted that she has feelings for Yamato, but he misinterprets them as being part of her playful nature. When she leaves Ayano's dormitory, she tells Yamato that he still has feelings for Suzuka and releases him from their promise so he can join Suzuka at Seijo University.

(Wikipedia)