Ok. 5 chapters in. Let's see what we got.
The concept is interesting. Shadows and ninjas and all that. Art is pretty good too.
The loli, as usual, is an issue. But at least she's not coming off as agressive jailbat. So the damage is lessened.
MC is the standard blank slate. The safe boring option. But hey, means there's room for improvment.
But our female deuteragonist... Oh god why. Like. I get that the Loli made a point to call her out as being incompetent to the point where it is a running joke, I get that. But jesus fucking christ... she still needs to be somewhat competent despite that! And again, I am getting the message of this chapter that she is in over her head, but she still needs to show she's somewhat comparable to the protagonist, that's what a deuteragonist is! They need to be able to bounce off each other, either as characters or as far as capabilities and capacity goes. And that's not what we get when in the previous chapter she was unloading her inferiority complex (which again, is played off as a joke) on him, at which point you're just activelly making her unlikable.
So... Let's keep going and hope they improve her writting. Because, hey, deuteragonists stick around. And if that writting doesn't improve, the whole story suffers for it. Let's see how that goes.