Isaac checked the skills.
Sovereign Summon
Level 1
Rank: SSS+
Effect 1: Allows you to summon three Abyssal Lieutenants (Empress-Type Spirits). The summons will follow the will of summoner. (0/3)
Effect 2: Each Lieutenant can summon and command lesser ghosts depending on their strength.
Passive Effect — Aura of Sovereign: Spirits bonded to you find it hard to refuse your orders. All Spirits under you gain +10% Movement Speed and +10% Attack Speed.
Mana Cost: None
Cooldown: None
…
Isaac blinked at the page for a few seconds.
'What…?'
The skill seemed simple when read quickly.
But the more he looked at it, the more amazing it felt.
Abyssal Lieutenants.
Those were not normal monsters.
Those were creatures from the Abyss, one of the most dangerous dimensions known.
He remembered the lessons taught in the survival courses by Professor Catherine.
In the ancient era before the apocalypse began, sometimes Gates appeared at places of high mana concentration.
