Hellgate Fortress is located on the northern borders of the Gehenna Empire. This fortress was specifically created to defend the empire against attacks from the monsters of the Boundless Ocean.
The number of marine monsters that live in the Boundless Ocean is astonishing, so it was crucial to create this fortress in case the monsters from the Boundless Ocean suddenly launched an attack.
At this moment, in one of the rooms of the Hellgate Fortress, a black-skinned demon was sleeping cosily on a fluffy bed.
The name of the black-skinned demon was Ipos, and he was the commander of the Hellgate Fortress.
"Hehehe..." In his sleep, Ipos was laughing like an idiot as if he was having a good dream.
*Ring *Ring - - - - -
Suddenly, loud sirens started to ring out throughout the Hellgate Fortress, startling Ipos, who immediately woke up from his deep sleep.