[Written during the demo, hopefully the devs will improve it so this review age well]
Honestly I like the overall aesthetic of the game, being outright described as "hellish office job warped into an actual hell", with all the characters given some sort of dark scheme or demonic theme, but mostly corperate. And the landscape being some sort of Final Fantasy rock platform with occasional office furnishing that fits surprisingly well, not to mention the good fucking music the game provided, no more generic copyright-free music baby!
People have been talking about the character design and the expressions, I gotta say it's goddamn good. Everyone's design and mannerism tells you exactly who they are, and the dialogues only add to their character, even if some of them confuses me. Like is it supposed to be a reference or a pun with the MC being called a "Manion?" But I think the some character designs can look similar at times, like the ones introduced in the Kickstarter page; I think they can look better, as long as it doesn't stray from the artstyle.
But speaking of uninteresting, you know what is? The gameplay. It's just match-3 but with haply some opponents or little minor mechanics; like a bigger stage, some rocks you have to match, and a lazer gun you can shoot, but that's it. It gets old real quick even with the difficulty starting to rise up, while the devs did came up with some variety to the game, only time will tell if they will be fun or frustrating for the game, but personally I welcome changes no matter what it is as long as it isn't just an orb with a different skin.
Though being a sex game, I wonder how much sexual content is gonna be added to the game. While there's all kinds of "puzzle" sex games all around the Steam market, they're used very sparingly and doesn't make it feel like it's worth it to play through 5 hours of sliding puzzles to get to that 1 Live2D animation the game has. While I might be asking too much, I hope there's more than 1 sex scene per character, even for how small the game is. For a starter, the female demon minions you encounter throughout the map, how about some scenes assigned to them in the future?
All and all, the game got potential and is way more polished than most other puzzle games I've seen on this site, but it's got its own share of flaws that need to be fixed ASAP. Hopefully the Kickstarter goal will be reached soon should you decided to extend it, or at least enough funding to help improve the game...