Reincarnated into a Multiverse, but High School DxD

"Probably."

Ren really could not bring himself to feel any resentment toward God for doing something like this.

After all, there was an old saying: "One who carries firewood for others must not be allowed to freeze to death in the wind and snow."

Though Ren was a transmigrator, he had benefited from that influence to some extent.

Afterward, Ren took Asia out of the abandoned factory and headed straight for the airport, preparing to go to Kuoh Town and complete this system mission.

Before boarding, however, Ren received a call from Griselda.

"How are things on your end?"

"I'm about to leave Italy with the little girl. Oh, right—I killed a few rogue exorcists in an abandoned factory. You can send someone to collect their bodies. Even if they don't scare any passersby, it wouldn't be good if they scared the flowers and grass."

"..."

Griselda fell silent on the other end of the call.

But she quickly guessed that it was probably related to Asia.

With an apologetic expression, she said, "Sorry, but I can't offer you any official support in this matter."

"It's fine. You already paid me, anyway."

Ren's tone was casual.

"If you really feel bad about it, send more main missions my way in the future. But don't bother me with those little scuffles."

"Uh..."

That was the part Griselda understood the least.

She had already apologized. Shouldn't he be asking for some sort of reward? Why did he seem so eager to take on missions instead?

Everyone else wished they could have seven days off every week.

Were you rushing to clock in or something?

After hanging up, she let out a soft sigh.

He could have asked for something else.

But soon, she realized a problem.

"Oh no, I forgot to ask where he was going."

Tokyo Has Two Characteristics

Ren had no idea what Griselda was thinking.

After taking a seat in first class, he reclined his chair, put on an eye mask, and went to sleep.

After all, a direct flight from Rome to the island nation took at least ten hours.

There was nowhere to go on a plane anyway, so sleeping was the only option.

But Asia, flying for the first time, was incredibly excited. She stayed pressed against the window, looking at the clouds, the distant cities, and the peaceful countryside.

At first, she kept asking Ren questions, but after seeing that he had fallen asleep, she lowered her voice and focused on the scenery outside. Before long, she too drifted off to sleep.

"Wake up. We're here."

Time always passed quickly when one was asleep.

Asia felt as though she had only just lain down when she had to get up again.

Still, she did not have the habit of sleeping in. After sitting blankly for a while, she regained her senses.

After leaving the airport and entering the city, Asia stared at the bustling metropolis before her in a daze.

Compared to Rome, the first impression Tokyo gave the girl was sheer shock.

The city lights had just come on, neon signs flickered, and the streets between the skyscrapers teemed with people. Streams of cars flowed endlessly, converging into rivers of light.

The streets were always crowded with hurried waves of people. Whenever the pedestrian lights at an intersection turned green, it was as if a floodgate had opened, releasing a surging tide of humanity.

Asia stared at the passing crowd in astonishment, her heart filled with shock.

"There are... so many people. Way too many!"

Although church events she had attended in the past had also drawn enormous crowds, they were nothing compared to what she saw before her.

Ren agreed completely.

In his impression, this place had only two defining traits.

The first was heat.

As for his impression of heat, there were two kinds, both familiar to people all over the world.

The other was that the population density was absurdly high.

Its actual area was less than 2,200 square kilometers, yet it housed more than fourteen million people. If the surrounding areas of Kanagawa, Saitama, Chiba, and the like were included, the total population exceeded thirty-seven million—one-third of the entire island nation's population, packed into only a few percent of its land area.

Ren liked looking at it, but he did not particularly like this place.

However, there were no direct flights from Rome to Kuoh Town, so he could only choose this place as his destination.

Of course, the mission had no time limit, so it did not matter if he went to Kuoh Town a little later.

And seeing Asia beside him looking like a country bumpkin entering a grand estate, there was no harm in staying here for a while.

Besides, in the world of High School DxD, Tokyo and Kyoto were both important locations where major events took place.

There were the Five Great Houses, as well as the yokai forces living in the shadows.

According to Ren's memories, the yokai in charge of that area was a busty beast-eared girl.

If he had the chance, Ren really wanted to see her for himself.

The first thing to do upon arriving in Tokyo was book a hotel.

And compared with the receptionist back in Rome, the receptionist here in Tokyo was far more professional.

She did not make any strange expression just because Asia was wearing a nun's habit.

After all, men bringing women to hotels to get rooms was commonplace.

Nun cosplay was perfectly normal.

Other similar types included nurses, shrine maidens, and so on.

There were even people dressed in kasaya robes!

After swiping the card and entering the suite, the first thing Asia did after putting down her luggage was secretly glance toward the bathroom.

After looking for a long time and finding no translucent glass, she quietly breathed a sigh of relief.

It was not as though she hated the idea of exposing her body in front of Ren, but a woman's modesty still made her feel embarrassed about revealing certain parts of herself before a man.

Ren did not have so many thoughts.

After putting down their luggage, he took Asia out to experience the local customs.

After strolling around for about twenty minutes, all he could say was that relationships between people in Tokyo were remarkably pure.

For example, in less than ten minutes on the pedestrian street, he saw several sweet-looking young beauties arm in arm with balding, potbellied men walking past him.

It nearly made Ren believe in love again.

At the same time, the foreign cultural shock delivered a tremendous blow to Asia's mind.

In particular, the adult entertainment shops scattered everywhere completely stunned her.

Girls dressed in skimpy clothing or anime-style outfits openly solicited customers on the sidewalks. All kinds of provocative slogans and advertisements could make one's thoughts run wild with just a glance.

But Ren knew full well that such advertisements existed purely to trick people into going inside and getting taken for a ride.

If someone really wanted to experience something different, they still needed to find a local guide.

Of course, Ren could not be bothered with places like that.

He had transmigrated, after all. If he was still going to settle for secondhand goods, he might as well go raise pigs.

At night, when the city lights had just come on, in a plaza near a park.

"This is so delicious. So sweet..."

Asia ate a fried banana covered in chocolate sauce and powdered sugar, muttering to herself with a blissful expression.

With the idea of wandering around and possibly triggering a hidden mission, Ren took her around the night market.

But after wandering for nearly two hours, he had not even seen half a ghost.

The system had not given any prompt, either.

Just as Ren was preparing to head back, the system's voice suddenly rang out.

[System Mission Issued: Demon Slayer Day]

[Mission Objective: Defeat the Thousand-Year Demon King, Muzan Kibutsuji]

[Reward: Determined by the amount of damage the host inflicts upon Muzan Kibutsuji. The greater the damage, the richer the reward!]

"Hmm?"

Ren, who had already been about to give up, suddenly raised an eyebrow.

Demon Slayer Day?

And Muzan Kibutsuji?

He knew there were demons similar to that in this world, but he had not expected even that trash boss to exist.

Still, taking a Demon King who had run rampant during the Taisho era and putting him into the High School DxD setting felt a little too malicious, did it not?

But Ren could not be bothered to look into it. He simply followed the map's guidance toward the target.

As for Asia, Ren sent her back to the hotel.

Late at night.

The moonlight was like water.

Like a thin veil, the moonlight struggled to pierce through the dense canopy, casting mottled shadows across the forest floor.

The night air was cold and damp, and everything around was silent.

Yet that tranquility was soon shattered by a series of rapid sounds of battle.

A grotesque humanoid monster, covered in dozens of black tentacles, glared hatefully at the figures pursuing him.

A Boss Who Dies in His Debut Episode

"Why are you chasing me?! Do you really have to exterminate me completely?!"

Muzan's entire body was covered in blood-red patterns and hair, while tooth-filled mouths sprouted all over him.

More than a dozen blood-red tentacles extended from his back, flailing wildly through the air.

His body radiated an intense killing intent and an oppressive aura that would make ordinary people tremble in fear.

Facing him was an exorcist squad from the Five Great Houses.

They gave no response to Muzan's roar, merely coldly throwing the talismans in their hands toward him.