Sansan

When a glorious old civilization was toppled overnight, a strange purple moon rose and thus began the Purple Moon Era.
Damn it! What kind of ecosystem was this? The evolution was messy. Even rabbit bites and plants were not to be messed with. How can one survive all this? Evolve into a Purple Moon Warrior? What did this have to do with the Purple Moon?
What kind of map was this? The Safety Sector? The Floating Domain? The Darkness Port? The Storm Voyage? The True Capital?
The Horror Lullaby List? The resurrection of the Underground Race and the prospering Underground City? The Chaos Black Market that suffused the world? The Bloody Road?
More importantly, one could end up in a bloody slaughter when dreaming and enter the Dream Domain? Fine, this damned era! 

Dark Moon Era

Gray Mist Street, the Bloody Tower, weak?

The strange copper-faced man was alone in his VIP room, so no one knew what he was muttering.

The audience in the colosseum was attracted by the performances of the young geniuses on screen, and the cheers were thunderous and ceaseless.

Speaking of which, what was with the difficulty of the scenarios?

According to normal Hell Ledge levels of difficulty, the odds of landing in one of the difficult scenarios were so slim that drawing the lots at random three times a day for 365 days straight might not even land on one of them, yet all the young geniuses were challenging the said scenarios that day.

The Bloody Tower was especially said to be the most difficult scenario for the newbie challengers.

There was a saying about the Bloody Tower: 'The one who climbs the tower will be covered in blood—either the enemy's blood or yours.'

Double Kill