She is a soul from another world that has traveled from the 21st century.
He was the powerful regent of the Dasheng Dynasty, and was known as the "No. 1 King of Hell in the Capital".
On the night when they were forced to get married, he said with a cold face not to try to win his heart.
But she smiled and said it was great, everyone got what they needed, and happy cooperation!
She thought it was just a hands-off deal.
He was moved by her quirkiness, but he didn't know her origin.
She fell for his clumsiness and gentleness, but did not dare to tell him the truth.
When she finally said "I love you" -
Already in the farewell letter...