Starting a Journey

The next day.

"Oi, Prontea, you are still alive."

Ars crouched in front of Prontea, who was lying on the ground dying.

"Cough... Don't joke around, senior. You yourself know we cannot die."

While vomiting blood, Prontea answered helplessly.

The reason for his current state was none other than Rin's training as usual.

"Don't blame Rin, she did it for all of us. Your strength, endurance, regeneration, and other aspects have improved a lot compared to how you were 50 years ago."

"Senior doesn't need to say it, I know, I've never hated Rin. It's just, I hope she can hold herself back."

Ars and Prontea have a good relationship, in fact, each Idaten cannot hate each other. Perhaps due to the inherent nature of the races, they wouldn't hold grudges against each other.

"By the way, senior is leaving today?" Prontea asked getting up and patting the dust off his clothes.

"Yes, before leaving, I want to ask for your help."

"Sure, senior is very kind to teach me your various skills, I will do it."

Before Ars even mentioned his request, Prontea agreed without a second thought.

"Okay, it's not in vain that I took care of you all this time."

Ars patted Prontea on the shoulder and was satisfied with his attitude.

Compared to humans who sometimes betray even though they have treated them well, Idaten will never betray one another.

Although the Idaten are the protectors of mankind, they will not interfere if humans become extinct due to internal conflicts. For example war.

Idaten will prevent the extinction of humanity in the event of a foreign enemy. For example Demon, Alien, etc.

"Follow me."

"Okay."

The two of them left the island, and after a while, they arrived in a desert.

Ars guided Prontea to a hole that had been camouflaged by sand, then the two of them entered the hole and arrived at a long tunnel.

"Wow, senior made this tunnel? Since when did you make it?"

"This place I made yesterday, do you remember the location?"

"Don't underestimate me, senior. I have a good memory, I won't forget our way here."

Prontea patted his chest proudly.

"That's good." Ares nodded.

Eventually they arrived at the end of the tunnel, and there was a stone altar in the middle of the room.

"Listen Prontea, your task is simple, don't let this altar be damaged. Otherwise, I won't be able to return to this world." Ars said seriously.

"Simply put, this is a sign senior left behind in order to return home." Prontea nodded in understanding.

"You're right."

"Then why didn't senior make another mark in case the sign here was broken?"

"It's not that I don't want to, but I can't! The [Teleport] magic can only mark three locations, I don't want to waste the remaining two marks in this world."

"I see… Senior wants to leave his mark on the other world. I don't have to stay in this place and guard the altar, right?"

Prontea loves freedom, if it wasn't for the fact that he couldn't escape Rin's radar, he wouldn't want to train. And now, after asking him to protect the altar for who knows how long, he really didn't want to.

"You are overthinking, there is no need to stay here. But every once in a while you should check the altar and if any humans somehow make it here, kick them out."

How could Ars let Prontea become a hikikomori in this place?

The main reason he chose the desert as the location to return to and from other worlds, besides avoiding natural disasters that might occur and destroying the altar, was also to prevent humans from finding it.

As a former human, Ars understands that humans love exploration.

"Just leave it to me, seniors can leave at ease." Prontea promised.

"En, I leave it to you."

Ars walked to the center of the altar and prepared to start his journey.

"Senior wants to go now? You didn't say goodbye to Rin?"

Prontea was surprised to see this, he thought his seniors had brought him here just for a demonstration.

"No need, it's not like we're separated forever. Due to the possible time dilation, I don't know when I can return. Maybe a few years, decades, or even hundreds of years. If your training is over, find a new generation of Idaten before you leave."

Ars gave Prontea a reminder.

"Okay, I promise."

Prontea didn't argue, he also felt a bit guilty if he left Rin alone on the island after his training was over.

"Goodbye."

"Be careful on the road, senior. Don't forget to take souvenirs when you come back."

Prontea waved both hands with a big smile on his face.

Ars smiled faintly, he preferred this kind of farewell to being accompanied by tears and sadness.

This was the first time he had used [Teleport] magic to traverse another world. Plus, he doesn't have specific coordinates, so he doesn't know what kind of world he will be stranded in.

(I hope it will arrive in the world of modern civilization.) Ars thought.

The magic circle under his feet glowed brightly and his body turned into particles of light.

Not long after, Ars' figure disappeared and the magic circle on the altar dimmed.

"Already gone? Hope everything goes well." Prontea muttered.

...

Endless Void.

This is a space that has no end. Here there is no air, oxygen, water, or other building blocks of life, it is only filled with cosmic radiation.

Space distorted and the figure of a black-haired youth with deep red eyes appeared.

That figure was none other than Ars.

"..."

He tried to speak, but no sound came out of his mouth.

(Oh, right. Air cannot travel in a vacuum. So, where am I now? Did [Teleportation] fail? This place is similar to outer space, I didn't see any meteoroids.)

Meteoroids are small space rocks that float freely in space and move fast.

Ars looked around, other than a point of light in the distance, which was probably a star, he didn't find a single meteoroid.

(Let's analyze the situation first, I've read a few novels where the protagonist can travel to another world and the conditions are somewhat similar. If my guess isn't wrong, each point of light is a world. If that's true… Countless.)

Ars was shocked by his own guess, he felt like a frog at the bottom of a well and the frog had come out of the well. It was the first time he saw the world.

(It's no use just guessing, let's try to land on one of the stars.)

After winning himself, he looked for the nearest star. After all, his speed had yet to reach the speed of light, so inevitably, he had to find the nearest star.

(Found it!)

Finding his goal, Ars reduced his weight to 0 kilograms and flew at Mach 25, or the equivalent of 25 times the speed of sound.

He had exceeded Koro Sensei's maximum speed.

Since there were no meteoroids in the way, Ars cut straight down without a hitch.

The closer he got to the star, the more clearly he could see that it was enveloped in a bright white light, making it impossible to see its true appearance.

Ars didn't know how much time had passed, because there was no concept of time here, but his estimate was that he had flown for one month and finally arrived in front of the starlight.

(Sign in or not?)

He hesitated.

Humans fear the unknown, and even though Ars is no longer human, he still has a bit of humanity left.

(I've come this far, why be afraid now.)

Making up his mind, he no longer hesitated and barged into the star of light in front of him.