Sealed Demon Cave is a cave that is known to contain a sealed demon and has rumors that this place was a place only those who had the "rights" could enter. But the rule changed after the Demonic Academy is created by Sword Demon, it became the place for the fifth test.
History[]
The origin of this place or test was the Fourth Gate of Corpse Blood Valley. The Fourth Gate test is also the same as the current Sealed Demon Cave.
It was a place that holds an old myth in the Heavenly Demon Divine Cult about a sealed demon that "Only one who possesses the qualifications may meet the hidden demon of the Sealed Demon Cave".
But after hundreds of years, nobody took the myth and rumors seriously as no one faced the said 'Demon' after entering the cave, but no one could find anything other than traps installed.
Plot[]
TBC