I saw this challenge, like, a few days sfter I finally started watching Higurashi. Yuno's my favorite Mirai Nikki character and, since she's insane, I thought that she and Shion might get along okay. What's supposed to be (kind of) happening in this picture, is Shion is about to nail Keiichi's fingers (hence the nails between her fingers) and Yuno is holding the hammer for her (while making her meme face).
Hope this is okay :3