Cradle is from the video game called Punishing Gray Raven. Cradle is an assistant to the player character in the Cursed Waves game mode. Cursed Waves is a roguelike game mode in Punishing Gray Raven, in which the player must advance through stages and achieve multiple different endings before a massive, world-ending tide resets all progress, starting over again. Only Cradle and the player character retain their memories after each death. Cradle knows more about the tide than she lets on.