Tanjiro and Inosuke

Tanjiro and Inosuke are friends and Inosuke has an older sister Vika and Vika is a very kind sweet caring girl until something happened they were all at school and when Vika was walking with Inosuke and Tanjiro suddenly the demons of the higher moons broke into the school to kill everyone who studies at the school and when Vika opened one class and closed the door