长陵国长公主熹和为稳固江山、肃清朝政，甘愿背负妖姬恶名。刺客乐滋滋受命行刺未遂，反被熹和所救。随着两人逐渐产生情谊，她也被卷入朝堂纷争与身份秘密之中。

Back in China and struggling with her career, Gu Nanxi unexpectedly finds love with Qin Shiqi, the younger brother of her best friend, who has quietly loved her for years. Their relationship blossoms into a sweet yet complicated love story filled with warmth, challenges, and emotional twists.