In the Gilded Pavilion in Shanghai at night, Bai Ying sang gracefully and became the "Nightingale" in the hearts of countless people. However, she was also involved in the whirlpool of Shanghai's powerful and gangsters. Ah Mo, this taciturn and mute bodyguard, became the only shadow beside her. He blocked the nuisance in the dark alley with his fists and feet, conveyed silent warmth with his eyes, handed her throat tea, protected her from the rain, and warded off disasters. He hid his protection in every subtle movement.
When the warlord son uses his power to imprison Bai Ying as a bird in a cage, Amo breaks the silent contract, brings his military spirit from the past, joins forces with his comrades, fights against the gangs, and protects her in a rescue that shocks Shanghai. Singing and silence collided. In addition to words, they used tacit understanding and deep affection to interpret the purest love - there is no need to make noise, and they only want to be silent for the rest of their lives.