Flipped!! [Oikawa x F!Reader x Kageyama]

On the last day of the training camp, Oikawa and Kageyama make the biggest mistake of their lives when the two get in a fight and accidentally break an ancient vase belonging to a beloved shrine. At first, they didn't think too much of it, but that changes when the two swap bodies! Needing to keep quiet about the predicament, the setters try to hide this knowledge while also trying to find a way to fix the whole situation. However things become complicated when Oikawa's girlfriend, [Surname] [Name], becomes incredibly suspicious of Tooru's new attitude.