Gaoh is a small, gray Koala that first appears in the first chapter of Shinsetsu. He is a Hajikelist (Wiggin) and also practices bone-crushing martial arts. A few months ago, he competed in a tournament to become Tsuru Tsurulina III's pet. He made it all the way to finals, but his last opponent was his friend Buta-kun, a pig that carried a calender of kills around his neck. The two are blinded by their own ambition, and Gaoh defeats him by breaking his neck. Buta dies of a mortal wound, and Gaoh takes his calender to remember him by. He betrays Tsuru Tsurulina III shortly afterwards.