Is Oma Kokichi sick?

Oma Kokichi is a liar, who likes to talk casually and rashly, and even pretends to cry. However, being sick refers to the personality characteristics of patients with mental illness and is an abnormal personality.

Oma Kokichi, one of the characters in "New Bullets Break V3, Everyone Killing Each other in the New Term", runs through the important role of the theme "Lies" in the whole plot, and has a keen intuition for everything, which plays a key role in promoting the plot.