A girl wants to experience how it is to be a boy. She wishes for it but little does she know her wish will come true.
The night she went to sleep and woke up feeling weird. She had to be a boy for 48 hours. She had to deal with the emotions and consequences of being a boy.
But, also. She switched bodies with a boy. He was unknown and very few knew of him. He had to be in her body for 48 hours and he finally came to realization how it feels to be a female.
These consequences and emotions draw the 2 to each other in the amount of the 48 hours.