The second stage boss of Touhou 17: Wily Beast and Weakest Creature, the "Child-bringing Guardian of Ancient Fish ". She is a 牛鬼 (ushi-oni or gyuuki), a cow-demon youkai, and has cow horns.
Her ability is to manipulate the weight of everyday objects, which she once used to increase the weight of the baby statue she holds to drown people. She now lives peacefully by the Sanzu River, where she runs a fishing business, and tries to help people who accidentally come to the river.