Anime characters in a room with bookshelves HD Wallpaper

Four anime characters are gathered in a room with a large bookshelf in the background. On the left, a male character with wolf ears sits with his hand on his forehead. Next to him, a character with long white hair tied back with a red ribbon stands with arms crossed. In the center, a blonde-haired girl in a blue dress holds a pink stuffed pig. To the right, a girl in a red hooded cloak looks to the side.