Six boys. One group chat. And one massive secret. Tom Riddle, Mattheo Riddle, Draco Malfoy, Theodore Nott, Lorenzo Berkshire and Blaise Zabini are all eighth years at Hogwarts. They’ve known each other for years. Or at least, they thought they had. Because apparently, the Riddle brothers forgot to mention one very important detail. They have a younger sister. Emilia Riddle. Seventeen. A seventh year. And completely unknown to the rest of the group. When Tom and Mattheo finally add her to the boys’ group chat because she’s bored, everyone assumes she’s some random girl they’ve added for entertainment. Until Lorenzo recognises her. Because Emilia isn’t just some girl he knows. She’s his girlfriend. And they’ve been together for an entire year. Tom and Mattheo knew. They just never thought their friends needed to know.