Kimi to Ita Sora

 is the debut single by Ueno Yuuka. It, and peaked at #45 on the Oricon singles chart.

Single Information
Kimi to Ita Sora was used as the theme song for the movie Toire no Hanako-san: Shin Gekijouban.
 * Lyrics: Saito Shiori (track 1), Kato Yuusuke (track 2), Kawabata Yoshimasa (track 3)
 * Composition: Uzumoto Naoki (track 1), Yoshiki Eriko (track 2), REO (track 3)
 * Arrangement: Koyama Kanae (track 1), UZA (track 2), Kanetsuki Yukitaka (track 3)

Best Edition CD

 * 1) Kimi to Ita Sora (君といた空)
 * 2) Arigatou wo Kimi e (ありがとうを君へ)
 * 3) Kimi to Ita Sora (君といた空) off vocal ver.
 * 4) Arigatou wo Kimi e (ありがとうを君へ) off vocal ver.

Deluxe Edition CD

 * 1) Kimi to Ita Sora (君といた空)
 * 2) Arigatou wo Kimi e (ありがとうを君へ)
 * 3) Summer Prism (サマープリズム)
 * 4) Kimi to Ita Sora (君といた空) off vocal ver.
 * 5) Arigatou wo Kimi e (ありがとうを君へ) off vocal ver.
 * 6) Summer Prism (サマープリズム) off vocal ver.

Deluxe Edition DVD

 * 1) Kimi to Ita Sora Music Video
 * 2) Kimi to Ita Sora Music Video Making Video