[Reviewed: "Intro"]
There's very, very little here at this point. You can spend almost as much time tweaking the settings for the GUI as it takes to read through the story. This intro has no choices, although as this game is marked as a Visual Novel, that's presumably going to change in the subsequent updates.
The story starts with the protagonist, implied as being an elite combat operative who can be tasked with assassinations, is about to start some required R&R after such a mission. But, even as he's supposedly about to get time with his family, it becomes clear that his mission is entangled with his (and his twin nieces) personal lives...somehow.
We're briefly introduced to a couple of co-operatives (female) along with the protagonist's mother and his sister, the mother of the twins. The family seems to be "extreme ginger" except for the protagonist, and possibly the mom. The twins look to be younger than high school age, although we have no details there. The twins are dropped off with the protagonist while the mom and sister need to go somewhere else for two weeks. My guess is that we won't be seeing anything from these two women after this, but with the shortness of this intro I could easily be wrong.
The images are perfectly fine with DAZ-style models. There's some music as the game begins but I didn't hear anything once the story started. There are some sound effects used appropriately in the story. The protagonist's name can be changed, but not through a typical story prompt. Instead we have a settings choice to change it. (This change is accomplished by a filtered substitution for the default name "Ethan" with the provided name. This seems awkward to me, as it's pretty straightforward in Ren'Py to have a [mc] in strings instead of a hard-coded "Ethan", have the mc Character be given [player_name] as it's name.)
The story text (which naturally ends with a bit of a cliff-hanger) feels a bit clumsy to me in places, but it's not too bad. I could nitpick and note that numbers should be spelled out, except when they come from computations or tunables (such as when assigning ages to the twins), and that "okey" shouldn't be used unless one is trying to sound geeky.
I've rated this a "good" (4 stars) with the hope that it'll keep going reasonably strong with the story.