C280 Songs for liquor

The letter read:

My Sister

Elder sister, do you remember what I told you before, that I want to go to the battlefield to build a country? At that time, although you disapproved, you did not refuse. He only said that if I can beat Big Brother Duan, then I can go.

I'm sorry, sister, but I've broken my promise. However, I had no choice but to do so