This is a simple and unpretentious story about the years of master and apprentice.
The apprentice will become darker, but he still has principles. Senior brother has his own difficulties, but he is not a bad person. The master is not very reliable, but he works hard.
There are bad guys, there are villains, BOOS is very tough, but in the end there are more good guys.
The protagonists' backgrounds are deeper than the last, regardless of whether they can remember their childhood or the past, or the hardships each one faced.
It's not easy, so I tried my best to make their endings as good as possible.
PS: BOOS is hidden very deep, please read with caution.