This is the VN I'm currently most excited about and can't wait to see the next update.
The story is quite interesting, but to me the characters will always be more important. And they're the biggest strength of this game: they're very pretty and some of their facial expressions are really the best I've ever seen. And we get to actually care about them, which is something not many VNs can accomplish.
You need to work a bit and make a connection with the girls to become intimate, hence the date-sim tag (ofc, there's quite a bit of corruption in the process).
And there's this interesting (and optional) quirk system where you can encourage a girl to become submissive, another to act like an older sister, etc.
There's a bit more grind required than I would've liked, and that's why this is actually more of a 4.5 stars to me. The grind applies to both acquiring mutant abilities and unlocking new sexual activities with the girls.
E.g. you need to put in the effort to even make your own character cum. To be fair, this becomes much easier after unlocking actual intercourse.
(I also read in the comments that the sex interaction system will be improved so I'm really looking forward to that.)
One thing I wish I'd known is that you can click a girl and interact with her to talk, give gifts, change wardrobe, etc. And there are repeatable sex scenes, which should be mandatory for all sandboxes.
You can customize a girl's appearance in different situations (e.g. public, private, etc) which includes clothes, hairstyle (not just on the head), piercings, etc.
I think this game is a must try for those with a bit of patience, the good stuff is a lot stronger than the bad. Thankfully, you don't need to be a superhero/comic-book fan to enjoy it (I'm just a casual in this regard).
Can't wait for the next update!