After a celebrity, Su Qi, suffers a severe allergic reaction backstage, genius makeup artist Lin Wan is blacklisted across the entire industry by brand director Zhou Man. Her reputation ruined and unable to find a way to prove her innocence, Lin Wan ends up living on the streets, making a living by setting up a roadside stall and shaping eyebrows. In her darkest hour, she uses half of an ancient formula manuscript left behind by her master to create handmade restorative soap, gradually earning her customers' trust and winning over her rebellious apprentice, Su Xiao. With secret assistance from a mute cleaning lady known as A Ya, she begins uncovering clues to an old case from ten years ago. Lin Wan establishes her own brand, Yanwan, but it repeatedly comes under attack from industry tycoon Shen Bijun and Zhou Man, who join forces to destroy her business. Undeterred by every setback, Lin Wan eventually exposes the evidence in a live broadcast at an industry summit, revealing that Shen Bijun stole the formula.