Overview: Consumed by the dark death, Ninja Girl Mai lashed out and accidentally struck down her only brother Jubei. The one she thought was dead. The one she had sworn to avenge. The realization of this tragic fact overwhelms her with emotion, and she faints. Meanwhile, a shadowy figure approaches in the darkness of the sewer tunnel. It’s up to Ayane Shiun (Chubby Mermaid) to protect herself and her fallen friend from whoever challenges them!