A lot JRPG H game have good story, gameplay, quality. When I said good mean it's acceptable, not like you can demand a perfect game in a H game (which focus more in sexual), even AAA games (which cost pretty much to develop) hardy have all 3 so what you expect in H game?
Game like AGA (Illusion), Biko (Illusion), DesBlood4 (Illusion), Eden (Forst)...have decent story, decent gameplay, decent quality (compare to H games in their era). Succubus Quest (RPG Maker), Life of Spirit (RPG Maker) Erotical Night (Flash), Seiren Harp (RPG Maker), Artemis Pearl (Wolf), they're all game that worth to play, and they're likely only 1% good game I ever played but my tiny brain can't remember all titles to tell.