Heroine: Su Huai (when the old man was young): She was admitted to the J City Women's Normal College at the age of 19. Because her family was poor, she set up a sewing stall under the locust tree to make a living. She has a soft personality but is strong on the outside. There is a scar on the ring finger of her left hand caused by a sewing needle.
Male protagonist: Lu Zhengnian (young owner of Lu's Shipping Company): He returned from studying abroad at the age of 23 and took over the family business. He appears to be ruthless and cold-blooded, but in fact, he was ostracized due to his mother's early death and his father's second marriage. He is extremely lacking in love in his heart. He always carries a locust flower handkerchief embroidered by his mother in his suit pocket.
