Mao is the glasses wearing hero of Disgaea 3. He is a high school student who has never attended a day of class and that makes him an honor roll student in the rules of the Netherworld. We also get a quick glimpse of Raspberyl, the school’s star delinquent because she does all her homework, and Almaz, a human who fantasizes about being a hero.
Besides introducing the cast there are a few gameplay techniques shown in the trailer. We can see a character running vertically up a massive tower and later Mao using the new system where demons morph into his weapon.