Ok. Shortcake is the most likely to be a witch, so you're off the hook. For now. After all, only one of you can be a witch. so if Shortcake is a witch, this clears Insa, Ranryu, Cellist, Snail, Fae, Bookwyrm, and Almond from being witches.
Never mind, you're all off the hook. Some emojis work, so Shortcake just got lucky. Check the Sharder one-liners thread for more detail.