The world has been invaded by a large number of iron grinding beasts, and humans are no longer the masters of this world. When hot weapons are helpless in the face of the powerful iron grinding beasts, a powerful metal giant appears.
This book tells the story of a passionate young mecha master... Who doesn't do his job properly.
Reader comments
It's just a bad name
I like it very much, it looks great!
Well written, keep up the good work
You can also write very carefully
Good, good, good
New perspective, different feelings
Super nice novel
The ability to continue viewing is okay
Okay, I'm very worried about it.
The book is very good, thank you to the author!
This is not bad. 
Very angry good book good book good book good book
It's not bad, it's gradual and not impatient.
Super beautiful ordinary mecha flow, no system and no plug-ins
This type of book is quite interesting. I give it a five-star review.
A good book, the protagonist strives for self-improvement
It's just a bad name
I like it very much, it looks great!
Well written, keep up the good work
You can also write very carefully
Good, good, good
New perspective, different feelings
Super nice novel
The ability to continue viewing is okay
Okay, I'm very worried about it.
The book is very good, thank you to the author!
This is not bad. 
Very angry good book good book good book good book
It's not bad, it's gradual and not impatient.
Super beautiful ordinary mecha flow, no system and no plug-ins
This type of book is quite interesting. I give it a five-star review.
A good book, the protagonist strives for self-improvement
Very good, keep waiting