The Strongest Holy Grail System

【Hottest Comprehensive Comics】
This is the story of saving the world...
Countless worlds have undergone changes, history has derailed on the original basis, and singularities have emerged one after another...
The ruined Guilty Crown, the shattered Sword Art Online, the final Holy Grail War...
Save the world from a fork in the road!Save the decadent and corrupt people!Revive the epic of humanity's grandeur!
Now, the game begins -
Save the world, receive Saint Quartz, and draw cards from the FGO card pool. Heroes will have them, Invincibles will have them, and girls will have them too!That's probably it
1st. Guilty Crown, 2nd. Eve of the Holy Grail, 3rd. Godslayer, the epic, exciting opening! ! !