This is a tragedy caused by child abuse. The mother was angry or even rough with her child without knowing the reason, and then she was killed by herself after going through the cycle, and at the same time, she was terrified of her son and began to die. It is said that the heroine did all this to see her son and to save her son. Why couldn't the heroine treat her son well in the first place, alas, she would not have been so kind to her son that she would die like this.
Everything the mother did in the back may be to atone for her own sins.
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