The frog and the prince(Flan x Belphegor)

Belphegor and Flan hate each other. Whenever they talk to each other, they keep on having arguments. But one event change their lives. One day they suddenly exchange bodies(Flan is in Belphegor's body while Belphegor is in Flan's body). And what's worst no one should know they exchange bodies or else they can never return to their own body. How can they live a normal life if they can't understand the body they are in? And worst,how can they even find a way to get back to their own body again if they keep on having arguments? Read along as many happenings came to their life. Will both of them accept each other? Or is it just hard for both of them?

I don't own Katekyo Hitman Reborn or any of its characters. All belongs to its owner.