This was similar to those martial arts sects. The head of the sect would always pass on all the core martial arts skills and techniques onto the next successor of the sect, but not to any of his other apprentices. This was to ensure that the strength of his successor would always be higher so that he would not get overthrown by his own men in the future.
In the past, Lord Schulz devoted himself to teaching all of his methods and strategies to his eldest son, Sheldon, every day. As for his other