The Last Human Returns.
Chapter 4 - The Devil Instructor.

Over the past week, the Trouble Guild Members had all only focused on training physically. However, to some with magic abilities, Ethan added the [Mana Detection] and [Mana Circulation] exercises. Both of them were very important to a Mage, Priest, even a Vanguard. Both abilities helped in the battle.

"Guild Masters!" Arya breaks into Ethan's room which is planning the direction of the Trouble Guild's overall growth.

Ethan glanced at the intruder at the entrance. Arya, for some reason seemed to be in a hurry.

"What's wrong?"

"Sister Kiaa and Li Mei said they found the [Hell Gate] not far from the Mansion. What are we going to do, Guild Master?"

Ethan's eyebrows shot up at the unexpected news. His lips curved up thinking of a best plan to maximize the team's growth.

On the other hand, Arya felt her spine cold. He had already been very memorized when he saw the expression of his Guild Master. That person thought of something that made no sense anymore.

Arya's guess is right. Ethan spoke something unreasonable with a calm smile. "Tell the other members. Three more days, a real battle drill would be conducted. If they don't want to die, it's better to train harder."

Arya's lips wriggled in restraint from swearing at her Guild Master. Real fight? They haven't even practiced for a week! It was the same asking them to die .. or so Arya would say if the other party wasn't a human named Ethan Austin.

"... You're coming, aren't you, Guild Master?"

"of course. If you die, I won't sleep well for two days."

Arya breathed a sigh of relief. Ethan's presence provides a form of security for him. After all, Ethan Austin was not summoned as a Sword Sovereign for no reason at his age who had not even turned 25.

"I understand. I will say this to the other Guild members."

Arya left just like how she suddenly appeared. It was unbelievable with his speed that he was a power-type fighter.

"Hell Gate, huh? I wonder what enemies will be in it."

***

Ethan pressed his temple seeing how tense all the Guild members were. "Hey. Why are you all so tense? You can think of it as the Raid we used to do during our time at [Eden] or Last Blue, right?"

However, Ethan's words were met with ridicule by the Guild members who found it extremely unreasonable.

"It is natural for man to fear the unknown!"

"We risked our lives. Not like VRMMORPG!"

"Don't compare the standard of a normal human with a Devil named Ethan!"

Their reply made sense. After all, the Trouble Guild members were not a Regressor. Their fighting experience was only limited in virtual reality.

Ethan doesn't care. He would be embarrassed to admit it now. "Stop complaining. If you're in danger, I'll help."

Thus, led by the Guild Master, the Trouble Guild began their first Hell Gate expedition.

Once past the Hell Gate, the spinning sensation made them nauseous. Their heads feel uncomfortable.

"Oh? Your luck is very bad." Ethan's bitter voice echoed in everyone's ears.

The Trouble Guild members frowned. Moist air and a foul smell rouse them from the sensation of dizziness. The place where they were now was, a dark cave with no illumination.

"[Light]."

Ethan uses elementary-level magic to create a ball of light. Something hidden in the darkness was revealed. Dozens of Undead made from bones had already surrounded the Trouble Guild.

"moving soon. Otherwise, you might die."