After dating her boyfriend for ten years, Su Wan finally comes to her senses on her thirtieth birthday. Having secured an offer from the overseas headquarters and bought a home of her own, she ends the relationship in which she was treated like nothing more than an accessory, without looking back. After the breakup, Xie Ciyuan, her sharp-tongued, aloof childhood friend and longtime rival, forcefully enters her life. Only then does Su Wan discover that he has secretly loved her for ten whole years, ever since they first met. Her ex deeply regrets losing her, but she has already learned to love herself first before embracing the right person.