==V1.0.1===
I've kept my eye on this game for a while but held off on a rating until it released, and after playing this I can confidently say its a solid H-game. While I would've liked the gameplay to be more spiced up (eg a backwards-dodge unless its emulating for classic RE style gameplay), or aiming with mouse instead of arrow keys, I think the strengths outweigh the small nitpicks I have about the gameplay.
==Gameplay==
-1 star (no shotgun)
The gameplay is fairly simple and not quite interesting as you just walk and shoot your gun, course there are some weakspots you might need to look out for for enemies like heads or a bright red flower(?), but the game is short enough that it doesn't begin to sour. The aresnal is fairly small too, w/ a pistol, an assault rifle, and a broom stick so you don't have alot to work with either. Overall it isn't anything special, i've played games with worse gameplay similar to this (that plant-zombie game, anthrophobia? i cant remember, but I vastly prefer Bad Day over that) and I would just give this a 0 star and have this be a 5 star review, but that pales in comparison to the fact there isn't a shotgun in a zombie game is heresy but I'll let it pass by taking away 1 star for that reason alone.
==Presentation==
+1 star
The visuals of this game are quite impressive personally, and while I don't find anything quite unique the monsters and quality of the animations and models is something I really appreciate. There is some AI cg for the menu avatar for Syahata, but its not as offputting as other AI art since there isn't anything uncanny at first glance (hands, face, body, etc.) so I'm asssuming that the artist might've touched up on it and ironed out the kinks unless AI really has come a long way (haven't paid attention to Syahata's menu model before so IDK). Still, if AI's a turnoff for you like it is to me (Not as much here since they fixed the uncanniness), its the only instance I noticed so you probably won't find much AI.
==H-factor==
+1 star, A rating
Combined with the great pixel art and animations, this is some of the best h-content I've seen recently combined with some great looking game-over cgs. The only disappointing aspect to the h-scene is the lack of impreg-scenarios w/ only flies and spiders being able to impregnate Syahata (w/ eggs). While I personally don't care about who or what fucks the girl usually, I should also mention that this game has a fair bit of beastiality and insect-fucking so, beware if thats a turn off.
[F = *disqusted look* "Euugh" || C = "Eh, good enough" || S = "Whoa! Where did my pants go?!" ]
==Suggestions and Improvements==
Off the top of my head, I do think that introducing something like alucard's/RE3 classic's (iirc) dodge would've been great for this game and maybe a bit more interactivity with the environment would've been nice too (like puzzles or npcs).
However, My first and foremost suggestion is generally just more content (and a shotgun), which is a good problem for devs. This game has some solid scenes so I would've liked to have seen something like a new area w/ new enemies and a new boss for this game. Still, game dev is wrapping this up to work on something else so I hope he improves his animation and artwork even more in his next game.
==Conclusion/TLDR==
This is a short, simple game with some great scenes and a good pixel-art aesthetic, so I recommend this if you're looking for a bit of spice with some gameplay.