Office lady Xu Chi, who lives by the motto "I must never be replaceable in this lifetime." She overcomes one challenge after another in the workplace, fighting side by side with company partner Ye Xinzhi, and ultimately becomes someone truly irreplaceable. The "scheming black lotus" Xu Chi and the "slick fox" Ye Xinzhi support each other while also locking horns in a love-hate relationship. From top screenwriter Zhang Wei comes a brand-new urban drama, fast-paced, emotionally charged, and in a short-drama format that hits the nerve of today's young audience. Get ready to level up through the battlefield of the workplace.