"Spending a Month with My Sister" is a RenPy adult game with sweet drawings and smooth animations. Without giving too much spoilers, basically, you got one month to shag your younger sister you haven't been seing for the last 10 years and you need to do your best in that limited time to seduce her and win her favor (or refer to some pseudo science solutions) to reach your goal. A kinky story i'm sure many of us can relate to.
The game design is kinda like any other RenPy, but it wants to be more than that. Or so i think because i don't have much experience with Japanese RenPy games. Despite the obvious effort though, it fails to be what it wants and falls into the mediocre side with many of the RenPy games on this website. It borrows some mechanics from the famous game Koikatsu, i think, again, im not very experienced with J-RenPy games, but implementations of the said mechanics were inadequately applied at best and you can't shake the feeling that game itself has been rushed to meet a deadline or something.
I got another shocker for you. Since this is a Japanese game, it requires a third party auto translation program, and uncensoring patch that some users here put their hearts into it. Unless your kink is staring at pixels, not understanding what's going on while people are having sex, just like in real life, you gonna need those patches. Translator is still not enough to understand everything, but it's still better than looking at a language you don't know anything about. Some conversations are so bad it's hilarious. And really, you gonna bad mouth the translation while you're laughing your arse off? Because it got you outta the mood? Come on now.
This is a semi decent incest game. for me, at least. There are some things that prevents me from giving this more than 3 stars and i'd like to mention some of them.
1) Game is extremely grindy. I needed to hack the game with a hex editor to get unlimited money and energy to focus on the relation ship, but got the same ending twice in a row.
2) It has little to no hint system and requires you to keep up with an unforgiving tempo. You got 30 days to get on with your goal. Like many of the Japanese games you are expected to accomplish the impossible. One undue chore or one wrong move maybe gonna cost you the ending you desire. You have to make the most out of your days to get certain things, do the right chores and that time frame is absolutely not enough even if you run a perfect game.
3) If you think about it, the unforgiving limited time is a gimmic that supposed put pressure on you to feel left out of other things you could have done so it wants you to play the game again and again after every 30 days, restarting it from scratch. Which would be fine if it had more content, sex positions, encounters etc but it's not there.
If the game theme is to your liking, give this one a try. If not, stay away from it. Hope it helped. Stay safe and good luck to anyone who made here without rolling their eyes in disappointment