Zhou Huaijin was taken aback by the scene before him.
He had never expected his Elder Brother to show up and take such drastic action, given that he was weak and seemingly incapable of rebellion. He was also surprised by the depth of his brother's grudge against the King.
Initially, Zhou Huaijin had planned to simply remove the King from the throne and relocate him elsewhere, as he still saw him as his father. Like his Elder Brother, he was too kind to take his life.
At least not with his own hands.
But now he saw that his Elder Brother had thought through the situation thoroughly.
His words about being the "bad one" here indicated that he was prepared to take responsibility for the King's death.
While the outcome was unexpected, Zhou Huaijin felt that it was reasonable. The King had committed sins and was now paying for them.
He didn't feel much emotion about the situation, seeing it as simply the result of the King's actions.
