Who is the lawyer mouse of Korean drama slang?

The mouse in the slang lawyer is the head of the family.

The director of Slang Lawyer admitted that he was a big mouse. It can be inferred from what he said that he did all this to avenge his daughter. He chose the man because he felt that only the man could compete with the chaebol, and the man was in danger. He lamented that he had no choice but to live. ?

After the housemaster confessed that he was a big mouse, the man took the initiative to betray him to Kong Zhixun. He wants to cooperate with Kong Zhixun. For him, the big mouse may not be the most terrible. The most terrible thing is the mayor, the chaebol. He had to step on a big mouse to get closer to the group. ?

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After the man was released from prison, he also bailed the housemaster. After the warden came out, he agreed with the man for a period of time and decided to tell him the truth behind the scenes. But just after the man left his residence, the house where the supervisor lived exploded. Not surprisingly, the housemaster should not have survived. He can't speak again until he tells the truth. ?

I thought that the housemaster exposed himself as a big mouse, which has gradually made the plot develop in a clearer direction. Who would have thought that the housemaster was dead, which means that the mystery about the rat seems to have returned to the original point.