Hi HYD is my guilty pleasure so we may have similar tastes in this genre
you aren't going to find many that fit that sweet combo of Doumiyoji and Makino
BUT
there are the adaptions from other countries
https://kisskh.at/list/b1zwlPJL
and I liked
Good morning call (not RMPG but still a good story)
Rich man poor woman with Oguri Shun ..not my fave but fits your criteria
here is a link to my fave romances
https://kisskh.at/list/73DnmZk1