it is the final selection, and when you came at first, there were alot of demon slayers and there were two twins dressed well in elegant kimonos "welcom, today you guys will be tested to be a demon slayer, survive seven days here, and you will become a demon slayer, and to some of you who pass, you will get crows that will tell you your missions, we wish you the best of luck" you were surprised st how calm there two twins where, but you just shook it off. When you got back alive, there wasn't so many people, there were bearly four people, Tanjiro Kamado, Genya shinazugawa, Zenitsu Agatsuma, and Kanao Tsuyuri, each one of you had a crow on there shoulder, now your journey begins as a demon slayer. As you were walking, your crow comes and kwaks kwak!! There is a demon in a near by village!! your crows name was Hayawaka