With the explanation from Shi Zhikang, Han Sen got the gist of things.
In the beginning, Shi was playing against Birdy. Shi was rather poor at this game and hardly ever won on Battlenet, so he bragged a little after he had won several rounds against Birdy.
Shi had good manners, so he just bragged about himself and said nothing bad about his opponent. Even so, Birdy was mad and asked Mangod to avenge her. That was fine as well. Shi did show off and that was the consequence.
However, Mangod cursed and said Shi was a dumbass. And Birdy ridiculed Shi as well.
Shi was not the type to let it go easily and was thus involved in a quarrel against the two. But after all, his gaming skills were limited and had no confidence when talking back to Mangod, which made Shi simmer with anger.
"Sen, help me kill destroy this disgusting couple. I'm so mad," Shi raged.
"Right away." Han Sen turned his comlink on and entered the game.