Hakkai Cho

Despite his pleasant and calm outward expression, Hakkai is a demon not to be reckoned with. He is capable of channeling his chi into powerful bursts of energy in battle, and can also form it into a shield to protect himself or his friends. He wears three earcuffs that act as his limiters. When removed, his true power is released. He can often dispatch demons much larger than himself or numerous foes in this form. Hakkai is often reluctant to do so due to the possible danger to his friends.

Out of Sanzo's companions, as well as Sanzo himself, Hakkai is the one who takes care of most of the group's basic tasks: cleaning up after them, shopping, cooking, etc. The jeep Hakkai drives is actually his small magical dragon companion, Hakuryuu.

(Source: Saiyuki.wikia & Saiyuki Reload Graffiti booklet)