A possibility within the
List_of_Sin
Yu Chichi is a monkey, and as such, has very monkey like tenancies, as one may guess. Despite being only part monkey it seems the monkey genes were the dominant ones when he was born. As such, he has very wild like instincts and very little concept of human decency (Though at least he has cloths on). Yu Chichi very much so displays his upon first meeting him. Swinging in trees, scratching an armpit or his rear, and plucking at nearby passers for bugs. This monkey does not have much knowledge of the concept of personal space, so typical greetings include him just plucking bugs, or trying to, from peoples hairs, or clambering onto their back as if he wanted a piggy back ride.
Yu Chichi has a semi typical diet. Fruits, favoring bananas, insects, leafy greens. However, he is pretty omnivorous in his diet as well, and when compelled with hunger, or with other needs, he wont hesitate to gobble up a person. Yu Chichi does not quite grasp what is right and wrong either, and as such, he figures that the fighting done with people being eaten is playful wrestling. And when hes finished with his meal made of person, he tends to forget that he had eaten anything alive like that at all by the time digesting is done. This means he doesn't really grasp that people don't really come back from that, or when it comes to relieving himself, the person he did eat is now dead and...well...being relieved. A very efficient monkey digestive system seems to eliminate most traces of live person from his guts to his bowel movement, and its not like Yu Chichi really pays attention to the end, hes off swinging again, only caring about his full energy and not living with the repercussions that his stomach had just ended another person in the jungle.