Mysterious Waif-tan is one of Trope-tan's many younger(?) sisters. She is the Anthropomorphic Personification of the Mysterious Waif trope. Among her many mysterious qualities: * Enigmatic half smile. * Straight, almost narrow, ambitious-looking lavender eyes. * Waist-length cyan hair. * A slightly translucent, knee-length white dress. * May or may not be Really Seven Hundred Years Old. Seriously, she won't tell me. * May or may not know Waif Fu. * Thought by some to be a Waif Prophet, but to others she seems to simply be a Deadpan Snarker. * Sometimes seen wearing a cross made out of raven feathers. Other times, she is seen wearing a golden signet ring embossed with a raven on a platinum chain around her neck. * Sometimes seen with the Chinese pictogram f