| Kono Aozora ni Yakusoku o | |
 Cover art of the Windows game | |
| この青空に約束を― (Kono Aozora ni Yakusoku o) | |
|---|---|
| Genre | Harem[1] |
| Video game | |
| Developer | Giga (Windows) TGL/Alchemist (PS2) TGL (PSP) |
| Genre | Eroge, Visual novel |
| Platform | Windows, PlayStation 2, PlayStation Portable, PlayStation Vita |
| Released | March 31, 2006 |
| Manga | |
| Kono Aozora ni Yakusoku o: Melody of the Sun and Sea | |
| Illustrated by | Shirogane Hina |
| Published by | Kadokawa Shoten |
| Magazine | Comp Ace |
| Demographic | Seinen |
| Published | 2007 |
| Volumes | 1 |
| Anime television series | |
| Kono Aozora ni Yakusoku o: Yōkoso Tsugumi Ryō e | |
| Directed by | Tsutomu Yabuki |
| Produced by | Makoto Itō Toshiaki Asaka Mitsuhiro Maruyama Michiko Koyanagi Yūichi Matsunaga |
| Written by | Satoru Nishizono |
| Music by | Kenji Ito |
| Studio | Artland |
| Original network | Aichi Television Broadcasting |
| Original run | April 3, 2007 – June 26, 2007 |
| Episodes | 13 |
Kono Aozora ni Yakusoku o (Japanese: この青空に約束を―, lit. "The Promise I made over this Blue Sky") is a Japanese adult visual novel produced by Giga, originally released on March 31, 2006. The game was ported to the PlayStation 2 in 2007, the PlayStation Portable in 2009, and the PlayStation Vita in 2015 came with additional content although the adult content was removed. An anime television series was made in 2007 under the title Kono Aozora ni Yakusoku o: Yōkoso Tsugumi Ryō e (この青空に約束を― ～ようこそつぐみ寮へ～, lit. "The Promise I made over this Blue Sky ~ Welcome to the Tsugumi Dorm ~"). A remake, titled Kono Aozora ni Yakusoku o Refine, is scheduled to be released for the Nintendo Switch and PlayStation 4 on December 19, 2024.
- ^ Oppliger, John (June 26, 2007). "Ask John: When Will The Harem Anime Genre Die?". AnimeNation. Archived from the original on August 22, 2009. Retrieved June 22, 2020.
Titles including Kono Aozora ni Yakusoku wo and Nagasarete Airantou represent contemporary Japanese harem anime.