The title basically summoned it up. This is a story of Fairy Tail Guild watching Kimetsu no Yaiba (Demon Slayer)! Come with them as they followed the Kamado siblings, Tanjiro and Nezuko, and the demon slayers of the KnY world. No pairing for now, just pure reactions
Ubuyashiki decides to give an important test for the young Demon Slayers. Go train in another reality, one where magic is real and the challenges are really powerful. While in this realm the group joins into a guild called Fairy Tail, who once was very powerful but once their great members went missing lost most of the power. However, they soon return, how this will go out?
Follow Natsu Dragneel, who’s now a demon in the world of demon slayers and man eating monters. he aims to rid the world of it’s evildoers, and win the heart of the woman he loves. Slight OOC Natsu