Once he accidentally entered the "layer of hell", he was pursued by the Dark Emperor. Forced to sign a contract and become the wife of the Dark Emperor. The return of the former lover deepens the misunderstanding between the two people, but their deep love is a substitute? Many years of life have surfaced. Suffering an assassination, he returns many years later under the name of "Capturing the Sky" killer, but there is no other memory of the past. Is it an assassination? Or fall?