"Human beings were once so thin that even a lone Fire Tooth Tiger could kill them. Until one day, the animals were surprised to find that humans appeared in their territory stepping on giant steel beasts with no body temperature."
With the combination of technology and beast control, the rise of humans and the siege of alien races, it is still unknown who will be the master of this world...
…………
"Brother, is this your contracted beast? Isn't it too much!"
"Is that okay with me?"
"No problem?! This is obviously a tank!"
"He just looks like a tank! Don't slander me!"
"Okay, okay! Like a tank? I'm asking you which contracted beast can fire!"
"It's just been a little hot lately..."