On the eve of her wedding, workplace professional Su Wanqing catches her fiancé He Ziwen's female best friend lying in their wedding bed wearing her bathrobe, while the groom offers endless excuses to defend her. Facing long-term emotional imbalance and a complete loss of boundaries, Su Wanqing refuses to endure it any longer. She immediately takes off her wedding ring, cancels the wedding banquet, clears out and packs up all of her fiancé's belongings, and makes a decisive break from their seven-year relationship. In the process of rebuilding her space and her life, she meets Zhou Yu, a home designer who understands boundaries and values choice. He Ziwen wakes up to reality and tries to make amends, but it is already too late. Su Wanqing reclaims her sovereignty over her life and joins hands with Zhou Yu to embark on a new chapter filled with a sense of security.