Bruh honestly what's up with MC has let'n the swine escape, like yea I seriously injured him but let him live another day so the revenge plot can continue he can do more harm and damage. Him kill'n off another one of MC harem chicks going be the final breath or what SMH.

Yeah, but it looks like Mo Wushang had to sacrifice a trump card magic item to escape. Both of them are exhausted and have no more power to fight, plus they don't know where he escaped too. The evil Mo Wushang has already placed a bunch of formations and traps at the lake in order to fight Ye Yu, so we know that he is tricky, just like the mc is...and likely has planned out an escape route with more traps! So, the plot allows the bad guy to escape to fight again another day! The good news is...with Ye Yu's several power ups in rapid succession...he is no longer the weak punching bag he used to be...Ye Yu can crush Mo Wushang in a fight...if he can do it now, he can surely do it again in the future.