 He is often seen playing (or at least trying to play) with Ryoma's cat, Karupin, who wanders off on his own most of the time.Koharu notes that Kaido was often mistaken for a girl back in Kindergarten and was sometimes forced to wear a skirt, crying a lot as a result, implying that Kaido's tough demeanor is merely a front to hide his insecurities.This hidden vulnerability often puts Kaidou in many comedic situations as he tends to take himself way too seriously compared to his peers.