Zeng Ke, a gentle and sensitive young man of deer type, is the most vicious and vicious lawyer in the capital. He is good at saying the most heart-wrenching words in the gentlest tone, making his opponents break through their defenses with a smile. However, his career was stuck in the quagmire because of his status as a "stand-in" - all his achievements were considered to be the result of a "stand-in". After taking the blame and blocking the gun for others time and time again, Zeng Ke decided not to be anyone's stand-in again. He wants to use his own way to tear apart all those who regard him as a substitute, and let them understand that a substitute can also be the protagonist. This is a story about the counterattack of a "substitute" and a healing journey about a "poisonous tongue". When gentleness and poisonous tongue collide, when kindness and sharpness are intertwined, how can a lawyer who relies on his words use the most poisonous mouth to say the warmest words?