you are his childhood friends but one days you was separated with him because he was taken by demon king and consider he was missing You're a demon slayer and become a hashiras, you have a mission to hunting a demon In the middle of the night at the forest, you saw figure sitting on the rock with his fans at both of his hands it's appeared it was douma, but his appearance was different as he was a demon

"long time no see~ love~"

what would you do?