C1160 Strangulation of Resident Joint Ninjutsu Battle Song
Not far from the Penglai Mountain Range was a huge lake.
The ground was filled with the corpses of the Ninja from the Iai Ninja Department of Heavenly State. There were wounds on their bodies that looked like they had been cut by a sharp sword. Blood flowed out of their bodies, and finally flowed into the lake beside them. It dyed the originally dark blue lake water blood-red