This list includes novel in which couple is married early on or arrange marriage. Romance is mostly after the marriage. Cultivating feelings slowly. Some of them have engaged couples.
I have only included the ones I have read.

If you have novel recommendation(s) please comment.

¶¶All the 'incomplete translation' novels were read via Google translator¶¶ so all of them are readable unless marked as 'Not read' or 'dropped'.