Own it via Mangagamer and overall it's a great H game made by the good folks over at Alicesoft. Gameplay is pretty simple and easy jrpg fare, but it still has some pretty good mechanics. I like how loot is streamlined, healing is strategic rather than spammable, and that status effects are useful against pretty much all bosses. Game is very easy overall, but some the optional bosses are pretty hard and enjoyable to fight. The main appeal is definitely the writing and story though. The story is really engaging with some good worldbuilding and the dialogue is very funny and enjoyable like you would expect from an Alicesoft rpg. Kathlyn and Riche are by far my favorites, but all the characters are solid. Aster is a pretty fun protag too. Like Rance without any of the unlikable elements. I love Rance, but if you can't stand him then you might still like Aster. The H scenes have voice acting so they're immediately better than almost all the Rance games, but they're still not why I would pick up the game personally. Overall Evenicle is much better as a actual jrpg than as a porn game imo and I 100% recommend it. Glad to see it on gog and hope to see the Rance games on here too.
