Tells the story of Annabelle "Annie" Chen's turbulent life. She was once the eldest daughter of the An family, but was betrayed by her stepmother and exiled abroad, becoming the base organization's golden assassin "Poppy". While carrying out her last mission, she had a one-night stand with Julian Foster II / "Jules". Six years later, she returns with her son Leo Chen Jr. / "Little Leo", whose voice can heal Julian Foster II / "Jules"'s biological mother. Annabelle "Annie" Chen is entangled by her ex-fiancé Julian "Jules" Foster and cooperates with Julian Foster II / "Jules" to protect her son. In the process, they experience framing from people like Anran and Song Wenran, and are also hunted down by "Tianlang". In the end, Annabelle "Annie" Chen and Julian Foster II / "Jules", with the help of Leo Chen Jr. / "Little Leo", resolve misunderstandings, successfully take revenge, overcome many difficulties together, hold a wedding and welcome a new life, living a happy life.