Tenkuu Shinpan / High Rise Invasion starts strong by putting you in the action right away, it's really interesting from the start, cool characters and intriguing plot however the story's sense of direction is just not there at all, everything gets changed completely even the character's decision making doesn't make sense at all, character development also isn't great. There are lots of fan service on this manga, I didn't really enjoy that part as it lowers the quality of the manga by a lot, immature people would love that part though.
The initial plot is interesting it's really sad that the author doesn't really seem to have a concrete plan on what to do with it. Most of the things established on the beginning is thrown out of the window, By the end of the manga nothing was answered, most of the characters become unrecognizable as they changed heavily, some of them gained superpowers which is real nonsense. Considering how long this manga is by the time I finished reading it it felt like it's a waste of time. There is a sequel to this manga but I'm not wasting my time for that. Tenkuu Shinpan suffers from bad storytelling and bad sense of direction by a lot.