Hakkai is the mild, polite and level-headed member of the Sanzo Ikkou. He is always looking out for their day to day well being. He takes on the more feminine roles: cooking, cleaning up after everyone, making sure their supplies are in order, and solving (or at least calming down) the arguments and yelling matches that happen frequently. He is also their healer, his kikou jutsu (chi manipulation/Qigong) comes in handy in battle in the form of ki blasts and protective barriers.