Jākunawani Rappa'shu (喇叭手ワニ邪悪な; Japanese for Trumpeter of the Wicked Crocodile), real name Amagasahebi (アマガサヘビ; Japanese for Krait) is the current head of the Rappa'shu Clan, and first among equals of the Five Ninja Heads of Getsugakure, making him the de facto leader of Getsugakure due to the shinobi's current influence over their daimyo. He is the father to Kōshin Rappa'shu, and was once a wandering shinobi who entered Getsugakure and learned the Rappa'shu clan techniques after marrying the daughter of its head at the time.