Mecha Invincible? I Start with Godzilla!

He You traveled to the world of mechas, and everyone was proud to be a mecha master.
People in this world say that mechas are king, and steel mechas destroy everything!
He You learned that a year later, an alien civilization will invade the earth, and mankind will face unprecedented catastrophe!
Fortunately, by activating the monster development system, as long as you have enough emotional points, you can exchange various monsters!
Since then.
He You embarked on a behind-the-scenes BOSS road to transform the world of mechas into the world of monsters!
When the King of Monsters Godzilla, King Ghidorah, Skull Island King Kong, Black Dragon King *Dhogg, the earthly python Yermengard and other monsters come to this world, and shred the world's proud machine At the time of A, people finally discovered that a world of monsters that was sealed in history has appeared in the eyes of the world since then!
one year later.
When the alien civilization came to Earth, He You opened his arms:
"Welcome to the world of monsters."