Arakawa under the Bridge x Bridge Episode 13 is the last episode of this anime series. The episode was released on December 26, 2010. Although Sister puts up a valiant defense against Maria's physical attacks, her insults help her win. Although her royal decree turns out to be to make the residents make clothes for her sheered sheep, she forces Kou, Hoshi, Sister and Last Samurai to be sheepdogs. Afterwards, the residents send their wishes down the river. When Nino's wish for everyone to be together forever gets stuck in the middle of the river, Kou paddles out and frees it for her, reassuring her of that promise.
Arakawa under the Bridge x Bridge Episode 13