Spoiler warning is in effect.

Chocolove was a late comer to the Shaman King cast after Lyserg deserted the group in favour of the X-Laws, he's introduced as a jokester with a firm goal of saving the world through comedy, a memento from his mentor, sadly as with most comedians, the smiling mask is often next to the tragic mask. Choco's parents were murdered on Christmas Day leading him to being raised by the Shaft Gang, unhinged and full of rage he murdered anyone who crossed him or his gang, even innocent bystanders in the wrong place at the wrong time, even after learning a different path from his mentor, his gang would later murder him as well, awakening to a new goal in life.
The sins weighed heavier as he would confront the children of the father he murdered and only through Yoh's heavy handed talk on the cycle of revenge that Choco would survive the encounter.
To pay for his sins, he gave up his sight and even after the world was saved, Choco willingly turned himself in to serve jail time for his crimes.
Gang land violence is all too real and it speaks volumes about Hiroyuki Takei's writing that he was able to show it's brutality and how easy it is for anyone to fall into it.