Reviewing this is kinda hard, I only finished the first volume by now but I really enjoyed it. The plot can be weird and perverted, and you can feel how it's inspired by other manga/anime, but somehow I find it really enjoyable to read.
story:
The main character is a perv, but he starts liking this girl and wants to change. With the main character being a perv you can probably imagine its extremely ecchi. Also there is a lot of gore.
art:
I personally love the art style, all the characters have nice designs and the Kaijins (the monsters they are fighting) are drawn with details which makes them creepier (in a good way).
character:
The characters aren't written in a very original way, but honestly even tho I thought I'll hate the protagonist for being a perv, I actually found it funny how pathetic he can act at times, and seeing him wanting to change is also pretty nice. I can definitely see character development already.
enjoyment:
It is enjoyable to read from my point of view. It has action, the main character can be funny, the main girl is definitely waifu, it has plenty of pretty girls, a lot of ecchi but even tho personally I'm not a fan of ecchi it was easy to just ignore.
overall:
There are definitely better things to read but I would recommend to give Kaijin Reijou a try!
