My Beautiful Disciples, I'm really not the Main Character!

The moment the Left Guardian's fingertips made contact with Eren's forehead, his pupils turned pitch black. It was as if the world itself had been shrouded in darkness for him, and time seemed to slow down.

As the Left Guardian initiated the soul search, a dark, ethereal mist began to seep into Eren's head.

This process was known to be extremely hard on the soul, capable of destroying a weak soul instantly if performed by an inexperienced person. Fortunately, the Left Guardian was more than capable.

Eren's mind was invaded, but he did not react. His fists remained tightly closed, hiding the wooden mask that had started to faintly glow.

Eren's body stiffened under the assault, but his expression remained unchanged. To the Left Guardian's surprise, she encountered little resistance, able to enter Eren's head with ease.

Her consciousness appeared inside Eren's mind, standing right outside the door to his consciousness. Beyond this door were the memories of the person.

As she looked at the door, she grew quite surprised. The door was surprisingly large, possessing a very unique pattern that she had never seen before.

She was someone from the Necromancer Tower, having a lot of experience when it came to dealing with souls. Despite that, she had never seen something like this before.

Normally, the doors protecting a person's consciousness were plain, having no distinct patterns. That's why the only way to judge the strength of the soul barrier was through the color of the barrier.

"This is the first time I've seen a door like this... Just what is this?" She looked at the door with fascination.

There were seven known layers of soul barriers, ranked in terms of their strength: white, violet, orange, blue, green, yellow and red.

An ordinary person's soul door was red which was the weakest. Even the Mythical Beast that she had hunted, only had a Violet Soul Door. The strongest known soul door was pure white, said to belong to the four Overlords.

Strangely enough, Eren's soul door had no such color. It was unlike anything she had encountered before.

Instead, the door was darker than the darkest of nights, being pitch black. It has no color, even the light couldn't shine on the door, being devoured by the dark exterior. It was impossible to see through the door.

Even more strange was the pattern on the door, which looked like a clock that didn't have any hands. Instead, there was an hourglass carved in the middle of the clock, which was equally empty in both halves.

There was a small crack in the hourglass, as if someone had intentionally ruined the perfectly carved hourglass.

The Left Guardian felt slightly uncomfortable as she looked at the door.

The more she looked at the carving in the middle of the door, the worse she felt. It was a strange feeling, that made her feel as if she was being watched by something unknown.

Even though she was one of the strongest people in the Necromancer Tower, she didn't feel like continuing with the soul search anymore. There were so many strange things about this soul door that even she felt slightly hesitant.

"An ordinary person can't have a soul door like this. In any case, there is no need to continue the search anymore."

She had already confirmed that Eren was the person responsible for the death of the family heads.

The person who could destroy the souls of those people couldn't be ordinary. His soul door had confirmed that the man who pretended to be a servant was far from ordinary.

She turned her back on the door and started leaving.

Back in the real world, the wooden mask in Eren's hand suddenly started shining even brightly, to the point that some of the light was shining through the gaps between his fingers.

Fortunately, the light that leaked wasn't bright enough to catch the attention of Ruby, who was more focused on the Left Guardian that stood like a statue in front of Eren.

"Why can't I leave?"

Still inside Eren's mind realm, the Left Guardian's expressions darkened. As she tried to leave, she felt as if some unknown force was restricting her.

At the moment, she couldn't even feel any connection between her body and her consciousness that was trapped here.

Her expressions distorted as she came to the realization that she might have fallen into a trap.

If the person was actually strong, then why did he allow her to invade his mind? The answer was simple. It was because the person wanted it to happen.

"Who are you?" She asked loudly, her words echoing in the endless space in Eren's mind realm.

"After entering someone's home without their person, you are asking for their identity?" A voice came from behind Kelia.

She swiftly turned around, finding Eren standing bare feet on the ground that looked like pure white sand.

"Who are you?" Kelia asked coldly. "Do you believe that you can escape from the Necromancer Tower?"

"Who said I was planning to escape?" Eren simply shrugged. "If I had to run, I wouldn't have come here in the first place. Isn't that right?"

As he talked, he stepped closer to Kelia, reaching out his hand just as she had tried to do when she first met him.

Ironically, it was Kelia who took a step back, avoiding his touch.

Eren didn't mind Kelia's actions. He simply walked past her and approached the door in the distance. It was the door that protected his consciousness. Or rather, it protected the secrets of Ren Necroline.

"I really thought you would help me open this door. I didn't expect you to be even more cowardly than I thought."

He touched the door, only to be pushed back by an unknown force. His hand felt like it had been momentarily paralyzed by the current that coursed through his veins. It took him quite some time to be able to use that hand again.