Citadel for All: The Only Unit Angel at the Start of the Game - Chapter 11: Top Bosses!

After getting hit by a truck in an attempt to chase down his brother's bullies, Alex in transmigrated into the body of a weak mage in a fantasy world called Eldora.As expected, transmigration can never be complete without a golden finger! Shortly after waking up in his new body, Alex awakens the almighty path system.But that wasn't all, a more shocking discovery almost blew Alex's mind away.....System is crashing!! System is crashing!! System is crashing!!!![Due to the system breaking down, several perimeters of the system have been broken. Required exp for leveling up is now fixed, repeatable missions no longer have limits and can be completed continuously even when capped. Penalty function disabled, rewards for missions are now fixed].......Alex's system got broken and a lot of functions stopped working but this was a good thing because Alex can now level up continuously without anything to slow him down.......Armed with such a system, join Alex as he journeys to become the strongest mage in this new world and what his reaction would be after finding out the secret of his system and why it had broken!!

A continuation from where High School DxD Volume 25 left off.

When a glorious old civilization was toppled overnight, a strange purple moon rose and thus began the Purple Moon Era.

One day, a silver-haired goddess appeared before him.“Heaven-Defying Star. The one who goes against fate. The sole savior of a world doomed to end—”What the hell is this woman even talking about?“You must be the Regressor.”“… What?”No, I’m not.