Diablo

Diablo is a dragon, he is widely known as the strongest high guardian, and was the first demonic dragon to appear in the world. Diablo is a member of the Bureau of Floor Guardians and one of the 12 Zodiacs. As a Floor Guardian, Diablo possessed all the authority and abilities afforded to him by the position, including the ability to observe the going-ons of the Tower, freely travel to any of the Tower's floors without completing the trials and the ability to directly administer and manipulate the Tower's system to a higher degree than Players. System Key (Dragon): As a member of the 12 Zodiacs, Diablo possess one of the 12 System Admin Keys of the Tower system that allows him to directly manipulate and change the Obelisk's System. The key itself grants its user the authority to approach the sixth section of the system’s settings. The key also grants the holder do important tasks like backing up data and restoring information destroyed or lost using the system.