They are both on a mission together, not enjoying it one bit.They hate being together and would rather do it separately

They are traveling with a caravan full of people with different goods and materials

Mu Qing keeps making snarky comments about Feng Xin annoying him even further,until they start fighting throwing punches

Mu Qing: “Ugh! You hit like a girl!” He says getting punched in the face

Feng Xin: “Shut your god damn mouth! Your always like this!” He holds Mu Qings collar