The Slayer Hidden Among The Trainer (Pokemon x KNY)

Demon...... A creature that who used to be a human before turned into a monster that eat human.....
Demon Slayer Corps.......... A group of organization which filled with skill swordsmen to killed demon.....

All same until Muzan,the king of demon was killed... All the demon were gone. The future generations no need to suffer the pain and fear of the demon anymore.

As the time pass, those creatures which know as 'pokemon' appear....The world started to change.... The world is peace and no need to fear the demon. Now, the legend of demon and demon slayer already become nothing but a fairytale..

Tomioka Giyuu.... The last Water Hashira of the Demon Era..... He died due to the demon slayer mark.... At the age of 25,he finally rest after slay countless demon..... He finally can see the one he love again...

But..... Why........

'Why.... I had reborn....... Why I was given a second chance........ I just want to rest..... Sleep..... I just want to follow them........ Nee-san, Sabito, Makomo...... Kocho......... When...... When I can died again........'

Now his story shall began...... as Ash Ketchum