He is Gravis's one of thousands of siblings, His path is similar to Gravis's. He gave up his path of cultivation since he feels it's impossible to reach his father's level and since he met his love of life and started a family and didn't want to risk his life anymore for cultivating.
He is the first sibling Gravis meets as the other siblings feel Gravis might end up dead soon and don't want to become close to him just to feel sorry after his death.
He helps Gravis in Combat training by bringing different beasts from outside.