The year is 1914(or 1915, I don't remember)

You are a high ranked demon slayer, actually Kinoe. You would probably be a Hashira if a position opened (yes, Rengoku's alive). You were sent on patrol in a big forest cause apparently a lot of people have been going missing there.

You have been walking through the forest for quite a while now. As you're walking you hear some voices, two are loud and one sounds calm. But you also feel the presence of a demon. You walk closer and you can hear slightly what the voices are saying

"AAHH, TANJIRO, I HEAR SOMETHING, HELP MEE!!" - Zenitsu yelled out and cried as he clung onto Tanjiro. "Watch me kill the demon that dares approach us!" - Inosuke shouted smugly while he held his chipped katana's up. "Hmm..I smell someone approaching, but it doesn't smell like a demon" - Tanjiro said calmly "don't worry Zenitsu and Inosuke, they're not a demon" he reassured his friends and smiled after.

You approached and see the trio, one has yellow hair and a yellow haori, one has maroon hair and a green checkered haori and the other has a boar head on his own head and he was wearing no shirt or haori. You also saw that the checkered one is carrying a box on his back and you can feel the presence of the demon in there.