God's Slave: Reincarnated Into an Academy of Heavenly Descendants

"Dimensional Rifts from the Abyssal Realm."

She completed as Nolan's eyes narrowed.

"According to thousands of years of information that we Celestial Heirs have gathered, the Nightmare creatures do not belong to this plane of existence.

They belong to another realm, commonly referred to as the Abyssal Realms.

"To come to our plane of existence, they use a means of transport which we all refer to as Rifts."

"The Nightmare creatures are capable of reasoning."

"They knew that if they opened up a rift to come to our plane and chose to come through the Celestial Realm, they would be swiftly killed by the powerful Celestial Heirs."

"So, therefore, they choose an area where the people are much weaker. And the best place is the mortal realm."

"The mortals, being naturally weak, are nothing but prey to the Nightmare creatures."

"They eat them up, or turn them into slaves, and if a rift is left open for a long time, there is a probability of the Nightmare creatures being able to infest the entire world, turning it into a natural habitat for themselves."

"Such a scenario in the past has led to great harm, that even we Celestial Heirs would find hard to take down."

"To prevent such a thing, Celestial Heirs are sent into the various mortal realms occasionally, once the presence of a rift having been opened in a particular mortal realm is heard."

"That is the first and major responsibility of us Celestial Heirs: to maintain peace through the realms, eliminating Nightmare creatures from our world and maintaining order through the realms…" Instructor Tiamat said, and Nolan finally realized.

Formerly, he had wondered which plane of realms the Nightmare creatures inhabited, since there were only three realms: belonging to Celestial Heirs, Titans, and mortals. But now he finally got his answer.

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The Nightmare creatures aren't naturally from this realm; they are from an outer realm.

"Today, we will be focusing mainly on a Celestial Heir's responsibility in closing various rifts, including the ways of closing rifts and in what forms a nightmarish creature can appear to you all…"

Instructor Tiamat said, and quickly, three hours of continuous teaching occurred, with every single student jotting down as much as they could, and even Nolan himself had pages filled with notes.

The information on every single page was something that could have only come out of a fictional web novel book, but he knew well it was more than true.

RIIIIIING

The sound of ringing could be heard, but every student was dazed when they heard the announcement that followed the ringing.

Instead of a 'Break-Time' call, it was instead an Announcement call!

"Yes!" Instructor Tiamat called to their attention as they all turned to her.

"The school has asked every instructor to give you all an announcement: In exactly a week from now, you all, who have managed to break through to the Heavenly Disciple stages, will be given the chance to leave the academy…" Instructor Tiamat said as the students' eyes all narrowed.

"Leave the academy for what? The holidays are still a few months away…" a student asked, and Instructor Tiamat finally completed.

"You all, who have reached the Heavenly Disciple stage, will all be going on your first Celestial Responsibility Heir mission, in the mortal realm!" she completed, and all the students remained dazed for a few seconds.

They would be going on their first Celestial Responsibility mission!

Wasn't that something for the second years?

"The academy believes that the more quickly you're faced with your responsibilities, the more efficient you will become as you grow up."

"But still, the missions are dangerous, which is why the academy has placed a requirement of being in the Heavenly Disciple stage before any of you are permitted.

"It would be an experience worth dying for, I tell you."

"So if you're in the Heavenly Disciple stage, congratulations on your automatic entry. If you have yet to reach the Heavenly Disciple stage, you have an entire week to do so…"

"Also, for the entirety of this week, you will only be taught a single subject, and that is Celestial Heir Responsibilities, and your only teacher would be me."

"The same is true for every class. So, you all can go for your break now, and once it ends, we will continue the topic…"

Instructor Tiamat said to them as she took her seat in the class instead of leaving this time, and slowly the students digested the shock before they all immediately began leaving for the class.

Excited murmurs could be heard from them, and even Nolan too was more than excited.

"The First Responsibility Mission, to a mortal realm?"

It would be officially the first time that Nolan had left the academy in three years.

Even though there were holidays offered by the academy regularly, Nolan never went back to his home, if he even had one, and so he remained in the academy.

This would be the first time he would be leaving the school grounds, and for a responsibility mission too.

He could almost not wait, and thankfully, he was at the Heavenly Disciple stage too, so he already automatically qualified.

[Stop thinking about it. It won't be interesting, and judging from your history of luck, you would surely die within, Hmph!] the system said to him, pouring water on Nolan's kindled heart, and his expression rapidly dropped.

"You just like to make me sad and depressed, don't you?" Nolan said with a grumbling expression.

[Tch, you're already sad and depressed. A peasant is never happy, and you're a peasant, remember?] the system further rubbed it in, and Nolan simply decided to ignore it.

Soon, thirty minutes passed, and there was no one in the class, save for none other than Instructor Tiamat, who was busy fiddling with her large textbook, and Nolan, who kept swerving from pages to pages, with his eyes narrowed.

Silence filled the class for a long time, the only thing breaking the silence being the sound of a page being swerved, but soon, a voice broke through the silence…