Unlock

鍵を解くと、ギャラリーの作品が開きます。

Pick four images, in the right order.

はじまりのロック

Where to find the answer

みなさんなぜか先に私のPixivのお気に入りの画像を先に見に行かれますね😎

こちらです
https://pixiv.net/artworks/149519597

The order you place them in is part of the answer. Even the right four images will not pass in the wrong order. Slots fill from the left.

Press an image to see it large. “Set” puts it in a slot, and the fourth one is checked straight away. You can pick the same image more than once.

After 3 misses in a row, your picks stop being checked for 5 hours.