Su Jinshu devoted three years to Yucheng Technology, independently building its core Yuan Shu system, only to have her achievements stolen by her superior and receive absolutely nothing as her year-end bonus. Disheartened, she walks away, and the company's core systems suddenly suffer a complete shutdown. Senior executives arrive at her door in the middle of the night, desperately begging her to return. Su Jinshu agrees to come back on her own terms. While repairing the system, she digs deep into the backend logs and uncovers evidence of corruption showing that General Manager Liu Donglin secretly created a backdoor to divert public funds. At the board meeting, she presents irrefutable evidence, exposes his false accusations, and successfully brings down the corporate parasite. With her exceptional technical expertise, Su Jinshu is promoted to Chief Technology Officer, where she reforms the technology department, establishes rigorous standards, and achieves a triumphant career comeback through her own abilities.