Japanese Terrorist: What? I'll fight Hellstar!

"Inferior quality product".

A contemptuous sneer rang in her ears. Amamiya Rin wanted to turn her head, but found that the air had become as sticky as glue. Such a simple and easy action was extremely difficult to do.

(It was a dream!)

Amamiya Rin immediately realized what was happening.

Without any preparation, he was drawn into the world of the Long Dream.

With eyes closed in meditation, all consciousness is gathered in the heart, and then spread throughout the body from a single thought, gradually taking back the self from the nightmare.

Turning his head, he saw that besides him and the teacher, there were more than a dozen girls sitting in the classroom.

They wore identical school uniforms, had long, smooth, jet-black hair, and bangs. Every single one of them had the exact same eerie, otherworldly appearance.

It was Tomie; they, as students, sat neatly at their desks.

However, although they are students, they don't act like students at all.

Some students pulled out makeup mirrors from somewhere and started applying makeup; some put their legs up on the desks; and some rested their chins on one hand, staring blankly out the window.

There were a few others, and Tomie, sitting next to Amamiya Rin, was looking at him with disdain.

"Even though you have our cells, your recovery is too slow. It took almost an hour for you to regain consciousness."

"After all, we're men. Come to think of it, no man has ever been able to withstand our cells."

"Amamiya Rin is also a half-baked expert; his self-healing ability is far inferior to ours."

……

Hearing Tomie and the others' conversation, Amamiya Rin was completely certain of the situation.

"I died once...was it sudden death? Because your cells revived?"

Amamiya Rin forcefully raised his arm and rubbed his temples. Even in the dream world, he could still feel the exhaustion that could crush his body.

But he was able to remain clear-headed, which is different from the real world.

"Thank me, without me you would be dead already."

Sitting next to her, Tomie Kawakami puffed out her chest, raised her chin, and said arrogantly.

"Thanks."

Amamiya Rin naturally and sincerely thanked Kawakami Tomie.

However, his attitude completely dampened Kawakami Tomie's spirits.

"Go to hell."

"don't want."

When Kawakami Tomie uttered harsh words, Amamiya Rin refused without hesitation, his attitude remaining perfectly natural and composed.

"……asshole!"

Tomie Kawakami's eyebrows twitched, and veins seemed to bulge. She slammed her hands on the table and stood up aggressively.

However, despite her aggressive demeanor, Kawakami Tomie only glared fiercely at Amamiya Rin before walking towards the classroom door.

And Tomie wasn't the only one leaving; few Tomie Kawakami were willing to waste time in the classroom. The Tomie Kawakami around him left one after another, leaving only Rin Amamiya and the old professor who was an NPC.

Despite being NPCs, they possess extremely high intelligence in the dream world.

The old professor on the podium looked displeased, but he didn't say anything to persuade Kawakami Tomie to stay.

He didn't care about the bad students who didn't want to listen to the lectures; as long as there was one student who listened attentively, that was enough.

However, Amamiya Rin also disappointed the old professor.

He put his hands on the desk and fell asleep immediately.

While studying is important, alleviating the physical fatigue that causes mental exhaustion is even more important.

She slept for three days and three nights. Three days later, Amamiya Rin woke up in the classroom, her exhausted spirit restored.

He stretched lazily, adjusted his state, and officially entered study mode.

In the days that followed, Amamiya Rin was like a sponge thrown into water, constantly absorbing knowledge.

The advantage of the dream world lies in this: the knowledge that Tomie and the others have acquired when they are awake manifests as teachers in different disciplines.

As long as Amamiya Rin is willing, he can acquire any knowledge he wants from these teachers' classes.

The only inconvenience was that Kawakami Tomie only knew the knowledge but didn't understand it, and even in her dreams, she still just recited it verbatim.

Amamiya Rin cannot expect the teachers in the dream world to have the same level of skill as those in the real world.

Fortunately, there is plenty of time, estimated at least twenty years, which is more than enough for him to study on his own using textbooks.

Engineering, materials science, chemical synthesis, basic physics, electronic technology... His learning path was highly targeted, with everything revolving around the two core concepts of survival and destruction.

He spent a lot of time in the laboratory and engineering workshop, starting with extracting raw materials and synthesizing simple explosives.

First, there was the ammonium nitrate diesel explosive, made by mixing ammonium nitrate, an agricultural fertilizer, and diesel fuel. The projectile was housed in a tin can, and the fuse was a match head and a cotton thread. After more than ten experiments, the finished product was far more powerful and portable than the explosive pack made in the dream.

Once lit and thrown, the explosion is powerful enough to shatter an iron gate.

Next came the simple shotgun, made by machining seamless steel pipes to form the barrel, then mixing black powder as the propellant, and using a spring and firing pin as the firing mechanism. The firing pin was released manually by pulling a lever, which detonated the gunpowder and propelled the projectile.

In the engineering workshop, he held the textbook, compared it with the actual object, and explored little by little until he finally created the finished product.

Afterwards, different proportions of chemical mixtures were repeatedly tested in open fields, and the chamber pressure, initial velocity, and stability were recorded each time.

Exploding barrels were commonplace for him; the flying metal fragments left him covered in wounds. Luckily, it was a dream world; if it were the real world, he would have blown himself to death.

With a certain degree of control over her dreams and increasingly skillful techniques, Amamiya Rin managed to pull through and create the most suitable bullets and firearms.

At the same time, Amamiya Rin did not give up his training in hypnosis and swordsmanship.

In a quiet room, he faced a huge floor-length mirror and engaged in deep self-hypnosis exercises.

He needs more precise control over his subconscious to combat the memory confusion and spiritual erosion caused by long dreams and the curse of ghost stories, while also exploring how to apply hypnotic suggestions more effectively to others.

Unfortunately, without professional guidance, relying solely on books yields very limited results.

"It seems that after I wake up, I must go find that legendary genius hypnotist."

A character in one of Junji Ito's manga possesses hypnotic skills that can affect ghosts, even those who are dead. Such hypnosis could be considered a fantasy technique in a fantasy novel.

The training ground for swordsmanship is even more expansive, where Amamiya Rin practices swordsmanship day after day, engaging in real combat with opponents.

However, the focus is not on the training of swordsmanship, but on preventing forgetting and regression.

His swordsmanship has reached a bottleneck; it will be difficult to improve by working in isolation.

That's one reason. But the more important reason is that swordsmanship has too many limitations. After the battle at the hospital, he realized that knowledge is power.

If he had bombs and guns at the time, dealing with Yuuma Azawa would have been much easier.

This dream time focuses on using university knowledge to improve proficiency in crafting weapons.