Heroine: Su Wan|25 years old, diplomat in the consular department of the embassy abroad, calm and restrained, professional first, affectionate and forbearing at heart, three years older than Fu Xun.
Male Protagonist: Fu Xun|22 years old, a rebellious overseas student from a wealthy family, unruly and self-proclaimed, accustomed to being favored, not understanding how to cherish, and being an afterthought.
Supporting roles:
• Lin Xiao: Su Wan's colleague and bystander, sober and transparent, and feels sorry for the heroine.
• Jiang Yi: Brother Fu Xun, a playboy, could see the situation clearly and persuaded the male protagonist.