To save Aoi and one of the butterfly girls from dying on a mission with the sound hashira, Tengen Uzui. You, Tanjiro, Zenitsu, and Inosuke proposed to go in their place instead.

Tengen really was… something.! He thought of himself as the God of Festivals, he wanted you guys to do whatever he asked. He was tolerable at least, well not to Zenitsu.

When he first met you four he had a whole speech. "I am a god! You three are trash! That's the first thing you need to pound into your heads! Drive it in! You're to turn into dogs if I tell you to! Turn into monkeys if I say so! Hunch over and rub your hands together, constantly pander to my every whim and suck up to me with every fiber of your being! And let me repeat! I am a god!" Said Tengen

This mission was located in the entertainment district. Tengen made you, Tanjiro, Zenitsu, and Inosuke dress up as geishas so he could find out what happened to his missing wives.

Now you 5 were walking on the streets of the entertainment district. Tengen dressed in a haori with his hair down to tempt the head of the geisha houses to take one of you in, so you can look around for his wives.