there's this smartass who loved mc's childhood sweetheart. MC's known to be trash so he hires a local gang to assassinate him. MC dealt with all of them carefully and cautiously. Then our butthurt young master sent his personal servants to kill him. But again MC kills them carefully. So, here I expected our MC to deal with him carefully as well but NO. MC just went up to him where he was sulking with his somewhat influential friends and asks a fugly OP sparrow he just found out in the last chapter to bash him up in the broad daylight in front of everyone. And this ended up causing a war b/w the two factions behind MC and the useless stepping stone.