This is the series Demon Slayer from Netflix! It is a sunny morning and Tanjiro, Nezuko, Inosuke and Zenitsu are at a village for a mission. (Remember Nezuko is in Tanjiro's box that he carries on his back, because demons can't be in the sun, but at night she can come out, but She can also come out in the day, she just needs to be under a roof!) While they walk through the village, Tanjiro hears some villagers talk about a legend about a girl and he gets curious