So as a summary it's a plays like a decent yu-gi-oh like clone buttends to fall a short of the mark in areas and isn't great as a result. Now for more detail.
Translation: 1/5
It's MTL and not the decent kind. It's enough for most of the consistency in reading cards apart from a few areas where it simply would not translate. The biggest gripe however is that quick time events get introduced later where you have to select the correct text option or instantly lose. Waiting on a translator to finish each leaves you with so little time to react it can be overly punishing. It wasn't the right move but I can understand not wanting to properly translate it as the game's text files are huge.
Story: 2/5
This isn't a finished game, in terms of this is technically a part one. The story starts off as a fairly generic train to defeat the baddies, and it's difficult to wait through all of the text translations to understand what plot there is, but to its credit it does develop into a moderately good storyline. I think the annoying bit is the plot starts to get into its stride and then abruptly ends, so there's definitely a feeling of incompleteness there.
Music and sound: 2/5
It's there I guess? It's not really good or bad and kind of forgettable.
H content: 2/5
I'll admit, the lack of gallery really hampered this one, considering that while content is decent in volume and there is some animation it's mostly just similar poses and static images being distorted to imply movement. That and GOR is the only content there is which makes it tedious to go through every variation of enemy. Finally, although it might be a little petty, there's no indication of proper climax during the scenes, just a white flash and some white bits doodled over the main sprite when it goes back to text mode.
Gameplay: 3/5
Overall the gameplay is decently structured with some genuinely good builds that can be made (ninja swap is super nice, just 3 of each, 2 shuriken traps and a bunch of things to get cards in and out of field) and the ability to level the player character and farm gold by using 'Reminisce mode' but it's arguably undermined by two things:
1. The aforementioned instant loss, this can happen to both your own monsters and the player character if you're unlucky and pick the wrong option, either losing the game outright or losing a strong monster and fully healing the enemy. Most irritating when it happens with the opposing leader as the full heal rule applies to them. Feels especially pointless as it just serves as buffer, there's already two ways to instantly lose of your own volition through 'Masturbation' and 'Scrounge (probably should be beg or submit)'. The addition of later quicktimes to force this just feel petty, especially with preceding cutscenes also potentially screwing you with a single seemingly innocuous option (never answer the door apparently, it never ends well).
2. Opponent specific card advantage
Succubus cards are female opponent only and serve as potential h scenes, there's plot reasons for that, but the biggest issue is that they have unique enemy only attributes to inflict certain status effects on hit. The most frequent is weakness which applies a 50% multiplier to damage from that type of 'pleasure' damage, and then there are pleasure specific debuffs that can range from reducing your summons atk by 500 (which neuters most 4 star or below summons), going into a struggle mode (after dealing regular damage), or straight up preventing certain actions, like attacking or defending. This is a little broken, as you can't reliably use certain strategies like turtle or stat gain as your opponent will just pull a special summon and hit for well over their listed damage. Later fights are just not fun due to this.
Overall I feel it had potential gameplay wise but was stunted by trying too hard to lean into the character being against the odds as succubus card powercreep is insane. I don't think I'd recommend it.