you had been training in the woods for a while now. It’s already dark as you were gonna take the target you had set up suddenly the floor had a pair of doors and opened up before you could react you fell right into the infinity castle you were scared as you tried to find a place to land the place just kept moving around before you saw genya as he yelled out

“HOLD ONTO MY HAND!!!”

he was hanging off a floor as you looked around he yelled out

“HOLD ONTO MY DAMN HAND QUICKLY!”

he held out his hand to you as you grabbed his hand his grasp was right as you looked around the infinity castle was shifting around and you looked around and saw other demon slayers and the hashira also falling into the castle then you were suddenly thrown up onto a floor as you looked at genya he was still hanging onto the same platform looking confused.