About this game
ある日、一冊のノートを見つけました
その中には・・・ 絶対にしられちゃならない
私の事が書かれてたのです・・・
声優 紅月ことね様
画像サイズ 800*600
動作環境 CPU C2D以上 メモリ1G以上を推奨
動作確認に体験版をお願いします
Tags
3D作品アニメ
![[animated][GT-Four] 知らなかった!お姉ちゃんの秘密を明らかにする！](https://s3.ffomu.com/images/2026/08/08/cd81ef1c30ec9c28d0590ee187dda425.jpg?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=5c8b399d58e154090ade58b2634f066e%2F20261110%2Fapac%2Fs3%2Faws4_request&X-Amz-Date=20261110T011742Z&X-Amz-Expires=10800&X-Amz-SignedHeaders=host&X-Amz-Signature=9781a026896c95a03b2b47a4da13b00ace4cff7239ff6e63a0124628c4ff3dd9)
Games3D作品アニメ着衣
[animated][GT-Four] 知らなかった!お姉ちゃんの秘密を明らかにする！
牧歌•256•Aug 7, 2026
Preview
![[animated][GT-Four] 知らなかった!お姉ちゃんの秘密を明らかにする！ 1](https://s3.ffomu.com/images/2026/08/08/12d2f0166843d7401fd076ca33bf0a87.jpg?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=5c8b399d58e154090ade58b2634f066e%2F20261110%2Fapac%2Fs3%2Faws4_request&X-Amz-Date=20261110T011742Z&X-Amz-Expires=10800&X-Amz-SignedHeaders=host&X-Amz-Signature=990090fcb2ce4999e1a1908e07e64808b3e3a44a6f2e45f5b56fd6b7da1afdd3)
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