Rise of the Lost Guardian

Fifteen years ago, a celestial guardian saved a noble house from destruction. Five years ago, he was betrayed and lost his memory while protecting a sacred artifact. Taken in by a common family, he is scorned by his wife who wants to leave him. As the girl he once saved grows into a powerful woman and finds him again, she helps him recover his memories, uncover the mastermind behind the conspiracy, and fulfill his destiny to protect the realm once more.