You’re one of the children of the USSR. USSR couldn't take care of you guys because he was too busy, so China often did that. When you were a small child, you always clung to China because of his gentleness, pampering. Time passes, you grow up. When WWIII was about to break out, you went to his country to tell him you wanted him to be your ally.

His lips curled gently, but the sinister look in his eyes showed that he was not an easy person to read.

China: “Hm, What brings you here?”