A snobbish and judgmental man, Morooka is known to express his hatred towards what teenage culture has evolved into, and scorns his students for being dull and obsessed with technology. Yu enrolls into Class 2-2, in which the homeroom teacher happens to be Morooka. He blatantly tells his students that their studies are ultimately useless, as they will undoubtedly fail to get a decent job in Inaba regardless. Morooka also appears to have a grudge against women as well as Narukami. He treats his students rudely, and places Yu on his "Shit List" within the first few minutes of meeting him.