Hao (昊(ハオ) - hao) is the father of Yilin . Doko him and are longtime friends and have the same age.
History[]
It is not known how long they know, but in any case knows Doko mother Yilin , Hao and mentions coming to visit Doko while Yilin was still a baby, a decade before the Anecdote of Doko (which happens 12 years after the Holy War ). Since the end of the Holy War, Doko is the peak of the 5 old, watching the seal of the spectra , and Hao, who lives outside of the mountain, is therefore instructs his friend to bring things necessary for life every day supplies, clean clothes and utensils.