In 2203 AD, the development of science and technology on Aquamarine Star entered a period of stagnation due to its long-term relative peace.

But an accident suddenly struck and broke this relative peace.

Strange dimensional cracks suddenly appeared all over the Aqua Planet. Countless monsters walked out of the dimensional cracks and attacked cities where humans lived.

The human warriors fought back against the monsters from another dimension.

This monster attack is called the "Dimensional Beast Attack" incident.

AD 2204

After a year of resistance, the human warriors paid a heavy price and barely managed to stop the invasion of dimensional beasts.

However, faced with the lock-in failure of the conventional weapons of the old generation after the emergence of the Dimensional Beasts, and the astonishing defense power of the Dimensional Beasts, mankind fell into a bitter battle.

AD 2205

Humanity paid a heavy price and successfully wiped out most of the dimensional beasts on the Aqua Blue Planet, but they were unable to close the dimensional rift at all.

Facing the constant influx of dimensional beasts, humans decided to retreat to major cities.

AD 2206

Most of the small countries on Aquamarine were destroyed by dimensional beasts.

In order to survive, human beings established three major human powers based on the continental plates.

They are: Silla Alliance, Human Innovation Unity, Free Federation

AD 2207

The attacks of dimensional beasts have become more active, and mankind is facing an existential crisis.

At this time, countless steel giants descended from the sky, repelled the dimensional beasts, and protected humans.

In the same year, a game called "Machine War" came out and swept the entire Aquablue Star.

AD 2210

In the three major human countries, the first batch of giant robots called mobile weapons were born and entered mass production.

AD 2233

Thirty years have passed since the "Dimensional Beast Attack" incident.

In that infinitely distant yet extremely close place.
Chapter completed!