Tsuru-Sennin (鶴仙人)
Background
He was once comrades with Kame-Sen'nin and studied under the same Martial Arts school. However, they were defeated by the evil forces of the Piccolo Daimaō and their mentor and sensei Mutaito died after sealing the demon away. Over time, bitterness and resentment began to grow in his heart and he eventually turned away from his master's old teachings and began a school where his hatred of the world began to spread among his pupils.
In the 22nd Tenka'ichi Budōkai, he entered his two star pupils, Tenshinhan and Chiaotzu to counter Kame-Sen'nin's pupils, Goku, Kuririn, and Yamcha.