Edited the review after playing it more.
The old school RPG side is pretty well done, it feels old schooll I would say but it also feels like it serve as an excuse to deliver some low quality renders (Pretty much all of the textures looks absolutely horrendous,some characters str8 up don't even have textures during hentai scenes) but there is actually a LOT of content in this game and it keeps expanding.
So my guess is the develloper just made a choice: more content, more quests, more characters, more stories, more locations, scenes, quests and side quests but much less details, kinda have to let your imagination do the job when it come to hentai scenes. And honestly that's a fair deal and I even like this way better for the RPGM genre, when youthink about it having very detailed renders but little content would not really make sense.
The dialogues during the scenes are very cliché like "anime/hentai ultra overreacting style" not my style but it's the way this jap culture genre works so it's not really a matter with the game itself I guess.
Now the progression. The beginnng of the game felt like a pain in the ass to me, because you have all theses events to do but you can't do anyting because of the way stats requirements work in the game.
The way we are supossed to triggers events is by meeting some requierements stats. You want to do this quest ? You need to have "x lust" or "x arrogance" wich leads you to very little content at the beginning of the game since you can't interract with anyting.
The hornisess stats is even worst, since it basicaly works as a ressoucre you have to spend in order to trigger a scene. Say I want to do this hentai scene, it requiers me 20 horniness, at the end of the scene I will have 0 and have to grind again by doing some repetitive stuff in order to trigger another scene.
This is pretty much the stat that I disslike the most personnonaly, because it forces you to grind a ressource many times in order to trigger a scene you want to see.
Every stats actually becomes way less grindy the more you progress, when I do stuff in the game after progressed a while in the story I don't have to bother too much regarding theses stats, I can unlock pretty much right away and horniness is not a big deal.
So yeah overall it is a well made old school RPG Hentai game, the best in this specific genre. There is a lot of content, it's almost 100% bug free from my experience wich is very rare when it comes to RPGM. It's not perfect either and I still think there could be more effort done when it comes to the visuals.