Inside the laboratory.
Loran was dissecting another demon.
Ever since breaking through to become a first-rank wizard apprentice, Charles had taken his studies seriously and had not gone to the Shadow Nightmare Realm for a month.
Every day, he buried himself in books, diligently studying the knowledge of Abyssal Grimoire Studies.
Whenever there was time, Loran would also call Charles into the laboratory to help as an experimental assistant.
Yet over more than a month, Loran had only managed to summon corporeal demons twice.
Charles had asked about it as well. "Senior Sister, why have you summoned corporeal demons so few times?"
Loran sighed. "I want to summon more corporeal demons too, but demons aren't so easy to summon."
"Have you ever gone fishing?"
Charles nodded.
Loran continued, "Summoning a corporeal demon is like fishing."
"To fish, you need to chum the waters. To summon a demon, you need sacrifices."
"Fishing requires bait, and summoning corporeal demons also requires bait. That bait is generally flesh and souls."
"Fishing requires patience, because many fish eat the bait but never get hooked."
"Summoning demons is the same. Demons are even more cunning than fish. The vast majority eat the sacrificial offerings, then ignore our request for a summons."
"So that's how it is." Charles gradually understood.
The knowledge in Abyssal Grimoire Studies also made this clear.
There were two kinds of demon summoning: corporeal demons and demon projections.
Summoning a demon projection was simple. As long as one supplied mana and sacrificed a portion of soul power, one could summon a demon.
After the battle, flesh and souls still had to be offered as sacrifices, and flesh had to be sacrificed regularly to maintain the relationship.
Summoning a corporeal demon, however, was twice as difficult, then twice again.
First, one had to