This is a world that repeatedly collapses.
Human civilization is in danger of extinction due to the attack of an alien life form called ``Original Sin'' that suddenly appears on Earth.
You, the only person in the world with "normal sense," lead a group of girls with the ability to grow into giants and save the world!

▼What is a healthy RPG?
A game that adolescent boys can play with peace of mind, which means it's healthy!

▼Up to 9VS9 battle system
A turn-based tactical battle that tests the navigator's brain!
This game allows up to 9 allies to be placed on the field.
Consider everyone's location, order of action, skills, etc., and use the optimal arrangement to conquer the battlefield!

▼Event is fully voiced
Not only the main story, but also limited time events are fully voiced!
The epic story will be delivered in the cute voice of a girl!

▼Correct harem
The girls are all colorful!
Everyone can be trained to the highest rank! Develop your favorite giant girl team!

◆Worldview
Human civilization is in danger of extinction due to the attack of an alien life form called ``Original Sin'' that suddenly appears on Earth.
In order to fight against Original Sin, a united front for humanity was launched, and the "Eternal Shield" Aigis was born.
"Giantization" and "Illusionary Core" led by the Aigis Science Department have been established as core technologies to combat Original Sin.
Combatants called Drivers run through the battlefield as the main force against Original Sin, wearing A.V.G armor created by the Illusion Core and a gigantic body comparable to Original Sin.
And you who lost your past memory――
For some reason, you possess the power of original sin, and you will be the key to saving human civilization from destruction...