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A joke? Becoming a Maou in a few years? Was this insulting him?

Issei Hyoudou could unleash Maou-class combat power in a single year, yet it would take him several years to become a Maou-class expert himself?

Though the calculations were different. Issei Hyoudou had forcibly reached that level through the power of a Sacred Gear and Balance Breaker, while he would attain it through his own true strength.

"By the way, Yang-kun, an Unreincarnated Devil with boundless prospects, I have a question for you."

Though the term Unreincarnated Devil sounded rather strange, Su Yang truly was such a being.

After explaining things for a while, Ajuka finally got to the main reason for his visit today.

"Please ask, Lord Achuka. What is your question?"

Su Yang asked, looking directly at Ajuka.

Mainly because he had not expected Ajuka to check his homework so soon, exposing his learning progress.

All in all, it was still that Demon Lord Girl's fault! If she had not come to his house, how could that whole series of events have happened afterward?

By the time Ajuka felt it was about time to check his homework, Su Yang had already finished learning everything on his own.

Ajuka looked at Su Yang, a trace of surprise flashing through his eyes.

"Yang-kun, would you be willing to become my Disciple? My only Disciple."

Under everyone's disbelieving gazes, Ajuka slowly spoke.

"Eh!? Achuka-chan? You want to take on a disciple?" Serafall's twin tails swayed, showing just how unusual her current mood was.

"Yes, Serafall. I see infinite possibilities in him—possibilities capable of changing the world. If he agrees, it will bring enormous benefits to both us and his growth," Ajuka replied.

"Taking me as a disciple..."

"I don't really like being called Master Achuka~~. What do you think of Teacher Achuka?"

Su Yang said with a curl of his lips.

A Transcendent-level teacher, possessing the knowledge he needed and holding such high status—someone who would definitely step in if he encountered danger.

Where else could he find a teacher like that?

Yet he truly did not care all that much.

The reason Ajuka wanted to take him as a disciple was probably because, after he grew stronger, he would need to contribute to the devil world. In others' eyes, he was likely someone from the Underworld.

But Su Yang did not care about that.

I do not belong to the Underworld. The Underworld belongs to me.

He simply was not used to the title of master~

Teacher was just right.

Besides, it might not be limited to the Underworld. It could even be the entire world, perhaps?

Su Yang's aspirations did not lie in this world either. With the Fish Avatar that was the Ark, once he became strong enough, wandering the Boundary Sea would be effortless for him.

With such thoughts in mind, Su Yang chose to put it that way.

"Eh?~~ Eh?~"

Rias and Sona stared at the teacher and student who had so directly established their relationship, falling into a dazed state.

Who am I? Where am I? What do anything you said have to do with me?

"Good, Yang. Then from now on, as teacher and student, let us guide each other well."

Ajuka said with a smile.

Seeing that Su Yang was unwilling to call him master, Ajuka had nothing to say about it and merely smiled noncommittally.

His attitude made it seem as though he and Su Yang were not ordinary teacher and student, but rather equal friends.

Indeed... perhaps he truly was not qualified to be his master?

Ajuka had seen a little more than Serafall had.

"Understood, Teacher Achuka."

Since the other party was showing him respect, Su Yang would not embarrass him.

He knew that Ajuka had definitely seen something even Serafall had failed to notice.

"Oh, and there's this."

After saying that, Su Yang vanished before everyone's eyes with an Instant Movement.

"Yang-kun? Yang-kun, where did you go?"

Sona said somewhat uneasily, while Ajuka slightly narrowed his eyes.

Su Yang's movement just now had not used any magic circle, Arts of the Way, Sacred Gear, or anything else. It was as though... as though it were an instinctive ability!

Yet before anyone could react, Su Yang's figure flashed back into view.

There was now a small Magic Circle sample in his hand.

"This is my gift for becoming your disciple. Please accept it."

Su Yang extended it toward where Ajuka's projection stood. This was his gift for becoming a disciple.

The etiquette of giving such a gift followed the customs of becoming a disciple in the Human World. He did not know whether Ajuka would understand what he meant.

Ajuka looked at the gift before him and frowned.

He had already understood Su Yang's meaning.

This kid really is a little stubborn. Still, with this relationship in place, it will greatly benefit the devils' future.

After silently complaining to himself, he still made a move.

A Teleportation Array appeared beneath the Magic Circle. As the Teleportation Array enveloped it, the small Magic Circle vanished from the Human World and appeared on the desk before Ajuka, who was handling official business.

This action represented his acknowledgment of Su Yang's approach.

Within the projection, Ajuka examined the Magic Circle,