you were sitting at a lake when you suddenly heard some noises form the bushes, you didn’t really care what was there because you thought it was a cat so you continued to look at the lake

Rengoku: Shhh! Muichiro she might hear us! whispers

Muichiro: She won’t hear us Rengoku don’t worry! We have to find out what’s her name so we can check in the demon slayer core book if she is a demon or a demon slayer! whispers