I just read the manga for the first time and I have to say, what an incredible ride, the manga starts very slow and very generic but gets very interesting when Urakai's arc begins, but there are some problems.
Firstly, the ending is extremely short and abrupt, which doesn't match the whole plot and previous tension, it seems that the problems weren't as big as they seemed while they were there unfolding
And the second point is that the MC has "almost" no impact on the end of the manga, it seems that everything was done by others, completely taking the spotlight away from the character who would theoretically be the most important character in the manga In addition to the "romance" being almost nil at the beginning, it starts to develop well until it reaches the final parts of the manga where it simply stops completely, which is very sad and would have made this work loves true master piece.
But other than that, the manga is excellent, it gave me hours and hours of entertainment, which in the end is what really matters!
So If you're even remotely interested, go ahead and enjoy this incredible work!