College professor × classmate and cousin.
The first time we met him on campus, and then when we met him again as a university professor, we fell in love with him at first sight.
He stayed on a podium to study and educate people, and she stayed in a small house to live a gentle life. They fell in love across identity rumors. There were no dramatic twists and turns, only the company of a steady flow of water. The two of them stayed together in the same house for the rest of their lives.