It's a story about an upright (?) Senior brother trying to get rid of an upright (?) Evil-minded (?) Evil-minded (?) Junior fellow apprentice, leveling up and fighting monsters along the way.
Yue Jin: "Ah Xiao, why did you kill Zhongliang for no reason yesterday? Senior brother is really heartbroken for you!"
Qin Xiao: "..."
All the monsters: "Ouch!"