Based on this: https://sta.sh/08maazgvmbq


Kira when Mad straight up pulls some bullsh*t about humans out of his ass and Kira believes him, for stupid that it might sound


Since she feels she's not demon material she's trying to learn to be more human so she's really interested in learning more about them, but outside her mum and Mad, she hasn't met a lot of them and the books she reads are not really to learn about humans. This makes her really prone to believe a lot of crazy or stupid things that people might tell her about them which Mad takes adventage of by feeding her wrong/stupid information or even some silly conspiracy theories. Obviously some things require more convincing for her to believe them but Mad's really good at getting her to believe what he tells her, especially if he leverages his former status as human to give more weight to his arguments

Also she doesn't know a lot about demons either, really, Kira what the f*ck do you even know about???