Shen Yuan was not an idiot who would instigate a fight without making sure that he would be on the losing end. May it be a loss in public opinion or physical losses, his pride wouldn't let him suffer any of it. It could be considered a case of perfectionism at this point.
"Y-you! What did you do to me?" Zhu Kai asked, sounding angry and afraid.
"Why don't you guess, little birdie?" Shen Yuan asked back in a devilish, hushed tone.
Right from the very start, Shen Yuan cleverly weaved his illusion with reality.
All the words and some actions made by Zhu Kai from the time they confronted were all genuine, but the majority of the maggot's actions are completely changed and exaggerated in the eyes of the spectators. He also filtered his words to make it appear that he wasn't the one who first instigated the fight.