I watched this at a theater after reading the first 2 volumes of the manga.
I seemed like it would be rather easy to adapt without needing expensive CGI and set pieces etc. All it needs is a good lead and usual action movie stuff like people have making for decades. Making a decent 7/10 movie out of this should be in the bag and for some reason they failed it. Feels like they spent their entire budget on getting a big name actress. Hashimoto Kanna definitely has it in her make it work but she doesn't really match the character's vibe. Nobody expects her to pull the action scenes like Keanu Reeves but this was absymal. Cuts and camera work making the heavy lifting with unnecessary CGI teleporting scenes etc.

Writing is the only thing this movie is somewhat decent at. They managed to merge first few arcs in a rather episodic manga in a sensible manner. I didn't liked the addition of the romantic subplot but that is expected at this point.

Other characters were doing okay jobs with my only complaint being the Yakuza boss constantly making dad jokes have too much screen time and he is not a very impactful character let alone the main villain. Might be another big name actor they are trying to get bang for their buck.