The staff looked at Ah Go, the goddess was already a very legendary existence of the Killer Guild, and there must be something strange about the newcomers who could follow the goddess to the Killer Guild to register.

"Please name the code name you have chosen for yourself," the staff member said to Argo.

Killers need to choose a resounding code name for themselves, and Argo understands these things.

"Nightingale" Argo thought for a moment and said these two words.

"Nightingale?" the staff hesitated, the name Nightingale reminded her of some stories.

"What is the relationship between the killer Nightingale who appeared five years ago and your Excellency?" the staff asked.

"If there's not a second person with that name over the years, I think it's me," Argo replied.

Even Yuria on the side was a little surprised by Argo's answer, the Killer Guild is a place where killers gather, and the killers here have a complete system for receiving and handing in tasks and receiving rewards.

But there are not without some lone killers, they have great force, extraordinary intelligence, and elusive stature, and Axel was one such killer that Ago's first met in the back mountain of the Nordir Academy.

Nightingale is also such a killer, and his reputation is even higher than that of Axel, but he and Axel are not in the same era.

Nightingale is a powerful magician, only rumors in the killer world that this person is a teenager, but no one knows his specific age, this teenager only existed for two years before he lost the news, some say that he died while on a mission, and some people say that he was tired of the life of a killer and retired to the rivers and lakes.

Whatever the reason, this famous teenage killer disappeared from the entire continent of Steelland overnight.

"So, Your Excellency, what happened five years ago that made you disappear into the killer world?" It was difficult for Jana to associate this young boy with the famous killer Nightingale, who now seemed to be a teenager under twenty years old, how old he was five years ago, but only fifteen.

Although it is rumored that Nightingale was a very young boy, Jana apparently did not believe that Nightingale was only a teenager under the age of fifteen.

Ago's memories slowly returned to the night five years ago, that night in the icy polar regions.

"Argo, your progress is so fast, even the teacher is amazed" The teacher said with his hands behind his back, not knowing whether to himself or to Argo.

"Teacher, what's wrong with this?" said Argo, clenching his fists, feeling an exciting power flow through his heart.

The Demon Teacher shook his head and fell into deep thought.

"I don't know for a teacher", apparently a powerful teacher has not experienced such a thing either.

"Ago, your talent for magic has shocked you, but it's clear that your perception of magic is nowhere near as fast as your power swells."

"In the long run, you will be swallowed up by the power you have," the teacher said to Argo for a long time.

Listening to the teacher's words, Argo couldn't help but think that when he used magic in the past two years, there was a fear of falling into darkness that was devouring him at all times, is this what the teacher said about being swallowed by his own power?

"Now you, reduce the use of magic" This is not the advice of the demon teacher, but the order of the demon teacher.

It was from this time that the name of the Nightingale disappeared from the entire continent of Steelland.

"Maybe it's because of the fear of death" Argo's memories come to an abrupt halt as the projections of Yuria and Jana are looking at him, waiting for his answer.

"If that's all there is to it, the Killer Guild won't be able to record this information for you," Jana said, shaking her head.

"Allow us to have respect for Mr. Nightingale".

"Miss Jana, I believe he is the killer nightingale," Yuria said her thoughts at this time.

"Your Excellency, the Killer Guild has enough respect for you, but that doesn't justify convincing the Killer Guild of this gentleman," Jana said, looking at Yuria.

"Since this gentleman says he is the killer Nightingale, why don't you tell him about the battle in which Mr. Nightingale became famous," said Jaina.

The reason why the killer nightingale has become a myth in the killer world is due to an assassination mission when the nightingale first debuted.

Every time Argo takes on a task, he does whatever he wants. Or it was directly told by the teacher, who would hide in the crowd after every end of the battle, and he didn't know how much shock the killer world would cause every time he completed the mission.

At that time, he only remembered the words of his teacher and felt the power he had in every battle.

Looking at Yuria and Jiana's respectful eyes, Argo realized how far-reaching the impact of his two years of dark life that he didn't care about.

"I think the version I'm talking about may be different from what everyone has heard," said Argo, who said it ahead of time because he didn't know what kind of version was being circulated in the killer world.

"Then please tell me the version of what you have experienced, the adults of the guild will naturally make a decision," Jia Na said, she had already informed the high level of the Killer Guild stationed in the Mishan branch, and two middle-aged men and a young lady appeared next to Jia Na, and the three of them did not speak, but nodded slightly with Yuria.

If they knew that Yuria wasn't just a killer goddess, but their immediate boss, they wouldn't have been so calm.

"At that time, I had just become a mid-level magician," Argo said slowly, moving his limbs to find the only sofa in the room and sit down.

The classification of magicians in the Stilland Continent is different from that of martial artists, first-order and second-order magicians are magic apprentices, belonging to magicians who can sense magical elements and can exert some low-level magical powers, and third- and fourth-order magicians belong to junior magicians.

Most of the magicians of this rank have sensed the magical power of their major, and they have the power to crush martial artists of the same level.

Fifth-order and sixth-order magicians belong to intermediate magicians, and magicians at this level are already at the point of entering the house, and they will be respected by others wherever they go.

As for the seventh-order and eighth-order magicians, they belong to the level of high-level magicians, while the ninth-order magicians belong to the magisters, and they have entered the ranks of peerless powerhouses.

Again, the Holy Demon Master has not appeared a few times since ancient times.

Ago's calm behavior did not arouse the disgust of the three Killer Guild leaders, but made the three leaders feel that this person's calm and calm performance was very appreciated.

"How old was Your Excellency, as far as we know, the Killer Nightingale was not very old at the time," the young lady asked.

"Thirteen years old" Ah Ge thought about it, except for the 10,000 years of his sleep, he should only be thirteen years old at that time.

"Oh my God, I didn't expect that the age of the killer nightingale at that time was even younger than rumored" The young woman exclaimed, a thirteen-year-old mid-level magician, a heavenly posture, even in the history of the Steelland continent for a thousand years.