River Moon is a goddess - and a suspected killer. She was the only witness when her older sister Skylar died, but although she claims she didn’t kill Sky, then who or what is killing others in the same manner? Ciel is determined to find out. He goes to the Lunar Academy to find out, but what he uncovers is not only dangerous, but shocking. River Moon isn’t just a goddess - she’s also family. But with her hidden secrets and dark past, she may be the greatest threat to Ciel’s survival.