Well, it is basically a choice based or similar to interactive story game so here we go
The Good
1) The Animations
It is really fluid and top notch and as the story progresses there will be a little bit of variations and the scenes will get intense. You will definitely enjoy it
2) Copulation sounds
There are a lots of copulation sounds so it is immersive like for e.g when the waifu blows you off you will hear the sounds of sucking,gagging,choking,etc and when you are banging you will hear the sounds of skin slapping.
3) Story
Well the plot is there but not all that good, at least it makes sense like both of you are in art club, she confessed her feelings for you and now she is seducing you to bang her and our protag is just dumb virgin so he cant control himself and this leads to sex scene. This is basically the plot at least a little bit of story is better than none at all.
4) You can freely select the chapter you want
After one climax scene you can literally select any chapter you want no need to watch the ending for the things you like, you will be given these options at branching point like you want her to blow you off or just start with sex.
The Bad
1) Lack of positions
Basically there are 4 stuffs you can do which are Blowjob, doggy, missionary and cowgirl and thats it. You wanted to start sex with foreplay like a little bit of kissing or some handjob or buttjob or something like piledriver or mating press nah you cant do that in here. There is no anal sex as well
2) Automatic Camera Angles
You cant just freely change the camera angles in scenes there is no option for that, as the scene progresses the camera angles will automatically change. You wanted to look at her ass while she's sucking you off no you cant do that.
3) No option to cum inside or outside
As you get to the end of the scene you will be given only 1 option and depending upon the scene option will be different but no both options together.
4) Waifu's lewd thoughts
It is basically her thoughts about the sexual activity she has engaged on and she will be saying in japanese and sadly no subtitles so unless you know japanese it is not worth it.
Conclusion
So you ask why I gave 4 star? That's a good question lol. To be honest, I really like the animations they are literally smooth and the variations are good and if you wanted to just have a quick fap this is 100% worth with no grinding at all but due to above demerits 1 star is removed.
It is basically the same as Umemaro's games if you ever played it.