Forgive me for treating you badly

Xianwu looked at his father's grave and lowered his eyes. "Wang Jiahao killed you. I promised you that I'll bring his head here. But my master stopped me from doing so. He says it will be wrong to kill someone, who walked on someone's order all his life. What shall I do?" Xianwu muttered. 

He was on his knees with his father's favorite wine in the jar. Pouring a cup for Lee Shimin, he placed it in front of the grave, and from the other he drank himself. 

"Grand Empress Dowager will be executed tomorrow for his heinous crimes. I contemplated and realized, she was the one, who killed you. Her execution will be a tribute to you. I hope Father forgives me for troubling him all these years and rest peacefully," Xianwu murmured as he touched the ground of the grave. 

Xianwu spent hours in front of his father's grave, speaking everything that he couldn't all these years. He didn't realize the time until a hand rested on his shoulder and he tilted his head to look up.