Rakan is a middle-aged man with dark hair. He wears the typical clothes of an official, along with a monocle over his right eye.
Like many of those in the Ra clan, Rakan is infamously eccentric. He is a genius tactician who also specializes in Go and shogi, but is incapable in practically every other way; due to his ability to pick highly capable subordinates, he himself spends his time lazing around and gossiping. He dotes on Maomao, whom he wants to be a loving father to, and is strongly opposed to letting her marry Jinshi.
Prosopagnosia: He can only see the faces of Fenshen and Maomao; those familiar to him take the form of shogi pieces, while strangers look like Go stones.
Perception: He is extremely perceptive and is able to identify people who are talented and what they are talented at just by looking at them. It is because of this that he is able to hire capable people to be his subordinates.
Strategy: As a Rii tactician, he is highly skilled in both military strategy and board games. His specialties are Go and shogi; it is said that the only man who can defeat him at Go is the Emperor's Go instructor, though he stated that Fenshen was better than him at Go.
- His name 羅漢 (Luohan) is also the Chinese transliteration of arhat.