The Invisible Strongest General. Ex-wife's Regret.

Edward, a Prince and the youngest war general in the Eastern region. He hides his identity by working in a private company owned by one of the Wijaya family's daughters, Kyla. He also married the woman he once helped, Elisabeth. Thinking his marriage was going well he was wrong, his wife was having an affair and she was not the woman he was looking for. So who is that woman?