After her grandfather passes away, Lin Wan inherits nothing but an old, dilapidated house that everyone looks down on. Determined to preserve the place filled with childhood memories, she decides to renovate it herself. However, while dismantling the western wall, she unexpectedly discovers gold bars and mysterious letters left behind by her grandfather. As one secret after another hidden in the old house comes to light, she finally realizes that her grandfather had already arranged a special form of protection for her. Faced with a series of revelations about the past and difficult choices, Lin Wan refuses to let these sudden changes disrupt her life. Instead, as she searches for the truth and protects the old house, she gradually learns to stand on her own, becomes more resolute, and rediscovers her own direction in life.