Underwear is Armor. Make Sure It's High in Defence. Otherwise, My Son Might Die! is the 3rd episode of the anime adaptation Summary Characters by Appearance Mamako Oosuki Masato Oosuki Porta Wise Mayor Shirase Empress of Night Retrieved from "https://okaasanonline.fandom.com/wiki/Underwear_is_Armor._Make_Sure_It%27s_High_in_Defence._Otherwise,_My_Son_Might_Die!?oldid=530" Categories: Episodes Community content is available under CC-BY-SA unless otherwise noted.