Finally finished RJ01080136. It has shallow but entertaining gameplay and plot but it's enough to complement the h-system very well. It's a simple grand strategy type of game and every turn you can choose one of your mistresses or sex slaves to have sex with. It delivers a really good immersive experience as a charismatic conqueror king who seizes lands and ladies' hearts, sometimes through charm and other times through force. After every round of conquest you can visit one of your ladies and have sexy time. It's a simple but nice gameplay flow.
The h-scenes are great, they're semi-animated and interactive. I wish each girl had two scenes instead of just one though. I know that this circle loves blowjobs so each girl should have had at least a blowjob scene.