Welt Yang is 82 years old, despite not looking so. Looking more in his mid-30’s. Besides the few white streaks in his hair. He is the senior researcher in the Astral Express, and helps with his experience around the place. The crew refers to him as “Grandpa.” He follows the Path Of Nihility which represents the concept of nothingness, nullity, and nonexistences. Relating to his past. The cane he carries is the Star of Eden, a black hole, which he only uses in dire straits and defensive postures.