Because only animation suddenly halved, the original 24 episodes were reduced to 12 episodes, and many plots could not be explained. In the last scene of the ending 12 episode, under the dim background, the man pulled a knife out of his backpack and then it was gone, so he had to wait until the second season.
Male master information:
The man Gui Mu's real background is that he lives in a family where his parents are divorced, his mother is busy with work, and the man is self-reliant and undertakes all the housework. It stands to reason that this background is normal, but the original author just added an image of an idle father, came back from divorce to ask his wife for money, and even violently opposed his son.