During the Republic of China, hidden under the locust trees in the old alleys of Jingu, there was a love affair that shattered the relationship between Fengyue and the country. She is the daughter of a merchant from Jinmen. She has the gentleness of the south of the Yangtze River in her eyebrows and eyes, but the tenacity of the north in her bones. In troubled times, she guarded the small bookstore inherited by her family, using pen and ink as a shield, and kneaded the fireworks of the market and the spirit of the literati into the pages. He is a new-school scholar who has returned from studying abroad. He has a vision of managing the world and benefiting the people. He also has hidden plans for his family and country that are unknown to the public. By chance, he stepped into this old alley with the fragrance of ink because of an isolated ancient book. Amid the mottled shadows of the locust trees, his gaze shattered the shadow of the lamp on her desk. When the evening breeze blows, the locust flowers fall all over the ground, which is the lingering feeling of wind and moon, and the sigh of the times. They met in turbulent times, and got closer between temptation and honesty. Huaiying was an unbreakable bond, and the night breeze was the way back. Every time they brushed shoulders and every embrace became the gentlest footnotes in troubled times. In the world of fireworks, they wrote a love affair that lives up to the years and does not regret meeting each other.