How do I collect stickers?
To get stickers, you need to assemble collections of cards in the Darkwood Stories event. For each collection assembled, you get one sticker.

How do I put stickers on a picture?
Pictures are stored in the Gallery of Memories on your desk. Open it to put the sticker you've collected on a picture.

Where will my pictures with stickers be kept?
Pictures are kept in the Gallery of Memories on your desk, where you can always view your collection. If you don't have time to put in the stickers you've collected, they will automatically be placed on the picture when you update the game.