On the night before her wedding, Shen Jiayi was full of joy, waiting for her fiancé to take her to see the starry sky under the sea, but what awaited her was instead a scam. The bride at the wedding was replaced by her own younger sister, and even her mother stood by her sister's side. In the deep-sea iron cage, her oxygen ran out, and her cries for help were treated as making a fuss over nothing; the child in her belly was the only belief she clenched her teeth to hold onto. When the truth was unveiled, remorse and tears had nowhere to rest. A heartbreaking story about betrayal, maternal love, and regret.