Rou Kaioshin

老界王神

Rou Kaioushin is a Kaioushin who emerged from the Z Sword, where he had been trapped and pinned to the ground by an old enemy, whom he describes as an "incredibly strong evil fellow." He resembles the East Kaioushin, but has an older, wrinkled face and a small mustache. Son Gohan releases him during the Majin Buu Saga when he breaks the Z Sword, while attempting to cut a block made of the strongest material in the universe. After being freed, he agrees to help Gohan unlock his full potential so he can defeat Majin Buu, but only in exchange for the chance to date an Earth woman.
Centuries ago, he considered himself quite handsome by his own standards, but a hideous witch approached him, stole one of his Potara Fusion Earrings, and put it on. Rou Kaioushin was instantly and permanently fused with the witch. While he lost his looks, he gained more magical power. In the Majin Buu Saga, he sacrifices his life so Son Gokuu can live, and gives him the Potara earrings to fuse with Gohan on Earth. However, since he was already residing in heaven, his death had little effect aside from producing a halo over his head.
In the Baby Saga of Dragon Ball GT, he helps Gokuu become much stronger by assisting him in regrowing his tail, a painful process involving a giant set of pliers.