Even though he had decided to leave, Chen Heng could not just immediately leave.
After all, he had many things to consider now.
In the academy, he had various business ventures that he needed to look after; now that he had to leave, he would have to sacrifice them.
As for Charlie, he would have to give him some notice.
After all, as Chen Heng had grown, he had officially begun to help Charlie with his experiments, and he was an irreplaceable helper to him.
As such, he had to let Charlie know in advance if he was going to leave.
Otherwise, it would not be too good.
Dealing with these matters took Chen Heng some time and effort.
It was not too bad on Charlie's side.
Because of how much he valued Chen Heng, he did not act high and mighty in front of Chen Heng. He was quite calm towards Chen Heng's request and was very agreeable to it.