The new David proceeded with school as the original David normally would. He was provided with the class schedule as well as a list of teachers who was handling him for this school year. His teachers were informed about an "accident" hence why they were very lenient with him. This gave the new David an opportunity to take it easy and focus more on the social aspect of being a teenage boy.
One thing that the new David didn't expect was for his classes to be as challenging as they are. He thought that living a life of a former 40 year old housewife would help him grasp the concepts very quickly. This wasn't true however, and he had to work just as hard as the old David in order to keep his grades up. While the old David was not athletic, he was quite a brainiac. The old David is a consistent A-student and the new David needs to make sure that he maintains this level of grade as well as he could, otherwise people will suspect that something is off.
That was the main instruction given to them by the clinic once they swapped bodies. No one but their immediate family could ever know that they have swapped bodies. If this information leaked out, the money they received from the procedure will be nullified. While Cathy came in with the swap desiring to take over her son's body, the fact of the matter is that they aren't a wealthy family. They desperately needed the money hence why both of them are keeping their mouths shut about the procedure.
After his classes were done, Greg and the new David were walking in the hallway and were about to go home.
"Dude, you have to check this game out. We'll have to play it some time" said Greg while showing his phone to his friend
"Sorry, I'm pretty busy right now. I have plans after school"
"What are you planning on doing after school?"
"I'm about to hit the gym. I'm planning on bulking up before prom"
"You were looking forward to this game the entire year. And now you're planning to ditch it to go to the gym? What happened to you dude?" asked Greg in an inquisitive tone
For a moment, the new David was worried that Greg might be catching up that something has changed. He was thinking of a way to make it appear that he's interested in the game without giving out any commitments. Cathy was never a huge fan of video games. She always scolded David back then whenever she sees him spending so much time playing video games. She thought that it was a waste of time and that he could do something so much better with his life rather than wasting away in his room playing video games. Now that he's David, there's no way he's going to waste this opportunity like that. He has absolutely no interest in playing video games and he was committed to transform this body into one of an athlete.
"I'm sorry but I promise I'll play with you soon. I just have a lot of plans right now. Ever since the accident, my mom got worried about my future so she enrolled me to a gym" said the new David, feeling proud of himself for the alibi he came up with
"Moms huh? You always told me your mom was overbearing. I guess there's nothing we can do about it, see ya tomorrow" said Greg, not knowing that the slight remark about Cathy was being heard by the person herself (himself)
Despite escaping Greg's plans to play a game with him, a slight tingle in his brain is screaming for him to play with Greg. It was a very tiny whimper, something that he could easily ignore. This was odd since Cathy was never interested in video games. In fact, she actively loathed playing video games. He didn't think too much of this so he packed up his things and proceeded to the gym.