Lu Yuan has worked diligently as an intern at Shengyu Group for six months, hoping to secure a permanent position. All this time, he has endured constant exploitation by his department manager, Manager Zheng, who frequently makes him pay out of his own pocket for various personal and company expenses. As the company prepares for its tenth-anniversary gala, it approves a special budget of 100,000 yuan. Manager Zheng publicly entrusts Lu Yuan with full responsibility for organizing the event and promises him a permanent position. However, behind the scenes, he conspires with Sister Sun from the finance department to divide the entire company fund between themselves, transferring only 300 yuan into Lu Yuan's account as petty cash. Their plan is to force Lu Yuan to cover the shortfall with his own money, then let Manager Zheng's incompetent nephew, Zheng Hao, steal the credit for the gala and take Lu Yuan's chance at becoming a permanent employee.