By name

Two child friends who have been at war with one another since an incident happened when they were younger!
When they were in middle school Seojin found Oh Jonghyuks name badge in his belonging after a night out and got so angry that he ends up breaking the name badge, he doesn’t let it bother him and ends up going to sleep thinking of past memories!
The next day when he wakes up and looks at his phone he realizes he is not in his correct body!
Two souls who hate each other the most have know changed bodies!
How will they live their life from now on? Is there a way to turn back to normal?