 A lot of non-hubing characters from children's media have their gender left ambiguous intentionally, presumably so that as many kids as possible can relate to the character they're viewing. However, the reason behind Gudetama's unknown gender actually makes perfect sense. Gudetama has no gender at all, because it's literally an unfertilized egg and therefore can't have one. As far as pronouns go though, Gudetama is typically referred to as it, However, it should be noted that for some reason the Hello Kitty YouTube channel refers to it as him. He him. He him. He him. Someone's getting fired.