Yashamaru was the ninja the Ogen selected for the demonstration at Sunpu. Yashamaru has the ability to control a weapon called Gokujou which basically is women's hair coated with animal's oil. He uses this weapon with great skill and with it he can tie up his enemies or even slice them in peaces (this hair can even cut through stone). Yashamaru is happily engaged Hotarubi who loves him more than anything.