Aia looked around to see a boy with green hair fading into black staring at then
"Hello, do you need anything?" Aia asked. Tanjiro stood up.
"We're you waiting for me? I could have followed your scent, but..."
"We're under a concealment spell, so there's no way you could trace us. Besides, isn't she a demon? What more, she's a hag." Said the boy, pointing at Nezuko. Apparently this offended Tanjiro a lot, as he made a huge fuss about that. Soon, they arrived at a mansion. They went inside, and Aia saw the woman she saw earlier. Tanjiro had a little conversation. Aia just looked around. Her pokéballs started rattling, meaning her Pokémon wanted to come out. "Excuse me 'mam, can I let my friends out here?"
"Please, call me Tamayo. And yes, you can" She said.
"Alright, you heard her, COME OUT!" Aia said throwing her pokéballs into the air and in a flash of blue light, her Decidueye, Hisuian Goodra, Shiny Hisuian Zoroark, Luxray, Hisuian Arcanine and her Garchomp came out and looked at their surroundings. Aia gave them a couple rice cakes to stop them from stressing out. "Are those... Pokémon?" Asked Tamayo in awe and surprise. "Yes." Said Aia.
"Tamayo... Once people have become demons... Is there a way to make them human again?" Asked Tanjiro.
"It does exist." She said. She explained that currently it was impossible but she and her companion, Yushiro, wanted to make a cure and asked Tanjiro for a bit of Nezuko's blood and if he would gather blood from strong demons for research. She also explained that they were friendly demons and they both drank medically extracted blood from people and in exchange, gave those people money. Luxray's eyes flashed gold and he nudged Aia with a concerned expression. "Oh no..." Said Aia. "Something's coming this way!" Suddenly several temari balls were thrown at them, destroying the mansion. When all the dust and rubble cleared, two demons stood before them, and they did not look friendly.
Aia: Ok so it's my turn today.
Tanjiro: *nods*
Aia: Here's a Taisho-era secret: Apparently, Japan is split into different parts: Hisui being the main region. That means different Pokémon live here!