A visual novel with more than 50 illustrations to color the story. Summer" has suddenly disappeared from a certain town. A boy returns to the town where the seasons have stopped, and is reunited with his former friends. What awaits him after he overcomes the cost of his wish?
A story of “one summer” of youth.
Witness the destiny that awaits you beyond your interaction with the heroine!
The story changes according to the choices you make!
The story changes depending on the hero's choices.
You can enjoy more than 200,000 words of text and more than 5 multiple endings!
More than 50 illustration stills!
You can enjoy the illustrations that color the story at various points in the scenario.
Depending on your choice or route, the illustrations may change...?
The “a” (alpha) version, which is the first version to appear on steam, comes with a short novella “Wait for white clouds,” which is a story from the past of the main game.
Wait for white clouds“ contains major spoilers for ”summer reunion", so we recommend that you play it after clearing the main game.
よくある質問
Steamストア(JP)での夏のさいかい‐in lost summer- aの価格は¥ 1,500です。2026年9月22日以降に当サイトが記録した最安値は¥ 1,500です。Steamではこのゲームに13地域で個別の価格が設定されています。地域別の価格は上記のとおりです。
夏のさいかい‐in lost summer- aは2025年9月11日にオルトバミューダからリリースされました(Steamでの配信開始から1年)。