<noinclude> <nowiki>*</nowiki> = optional row <PRE>
</PRE> </noinclude>Aida is a member of the social development department from the administration office of Shishibone and works in the municipal division. He only appears in Minagoroshi-hen where he get a call from a member of the Hinamizawa Coalition VIllage Council who tells him that they take part in the Protestants for Satoko's liberty. He then calls the director of the Child Welfare Office who doesn't agree with that thing. He hangs up and says that it is going badly besides the welfare policy director is indifferent and that he doesn't with who he deals. He finally says that he isn't responsible for what will happen.
