When he was down and out, I volunteered to be a stepping stone to his success. Fortunately, after his glory, he could not forget his troubled wife in his youth.
(Note: The male protagonist has a tough character, is talented and intelligent, and has risen from grassroots to dominating the imperial industry. The female protagonist has been beautiful and slightly squeamish, from the daughter of a prince to a queen. This article is one-on-one, but there will be passers-by A, B, B, D...)