Michael did not react to Onyx's notification of someone coming to visit him. Instead, he just continued holding Kate in his embrace, until she was finally calm.
Initially, Kate was feeling quite overwhelmed. After all, she had just dealt with someone who had caused her so much trouble.
It was because this person had killed her father, that she had not experienced at the same childhood as other children. Ever since she was young, she had to endure harsh training, while other kids enjoyed life.
With her background and the support of the Morgan family, she would have definitely had gotten a better childhood, if not for the death of her father.
Therefore, the hatred that she held towards this guy, it was tremendous. When she got the chance to take revenge, she could not hold back at all.
