Red (Blood) Mountain

Red Mountain, also known as Blood Mountain, got its name from a dark history that took place decades ago during the 'Great Reshuffle'.

At that time, this mountain was a battleground where countless people and monsters lost their lives, and the bloodshed was so intense that it stained the stones near the mountain with a reddish hue.

If you plan on exploring this place, it's important to be aware of the strong killing aura that still lingers in the surroundings.

Without mental fortitude, this aura could overwhelm you and turn you into a mindless killer.

'Still, I have to obtain the elixir now; there would be no point in coming here later.'

This elixir was one of the hidden pieces in the mountain, which Kaya's route had mentioned.

In the storyline, an evil organization had conspired to kill Kaya's parents, successfully executing their plan. However, suspecting that Kaya might seek revenge, they planted a spy in the academy and tempted him with the elixir.

However, our protagonist killed the spy before he could complete the mission and retrieve that elixir. 

Because of that, players were left unsure of its whereabouts.

After recalling the details, Rain began climbing the blood mountain straight towards the top.

Blood mountain had many simillarities with Mount Fuji. It was more than 3000 meters tall, bad climate, steep inclines. For a moment, Rain thought - it was original mt.fuji. Because of that, rain had already prepared some climbing equipment.

However, after climbing less than 1/3rd part, he stopped at the hillside, turned left, and began climbing the mountain again.

***

After some time, he spotted a cave near some large boulders and entered it. However before entering the cave, he caught his breath and drank a stamina recovery potion. 

The dense killing aura of the mountain made the climb grueling and exhausting. 'Going to this damn mountain is painful and tiring,' Rain grumbled inwardly. 'If it weren't for the artifact that increased my strength and protection, I wouldn't even be able to step foot on it.'

After fighting the red wolf and defending himself from the killing aura, Rain was quite exhausted.

He stepped into the cave, and darkness enveloped him immediately.

He reached into his space ring without hesitation and retrieved his headband with a flashlight.

As he wore it, the beam of light illuminated the immediate area, revealing the rough terrain of the cave floor.

With each step, the beam of light from his flashlight revealed more of the cave's features.

The walls were uneven, with menacing stalactites hanging down from the ceiling like teeth.

The air was thick with the musty scent of damp earth, and the sound of water dripping echoed throughout the cavern.

As Rain's eyes adjusted to the dim light, he detected something unsettling about the cave.

Scattered throughout the cavern were the remains of both human and monster creatures.

The skeletons of humans lay scattered amongst the rocks, their bones picked clean by the ravages of time.

The remains of monsters were still relatively intact, frozen in death with their powerful frames.

Rain could loot them as they might have some good things.

But for now, he continued walking deeper into the cave, seeking what he came for.

At the end of the cave, there was only a single skeleton, positioned like he was resting for the last time.

Even from the aura of the skeleton, Rain could sense that he was an SS-Ranker when he was alive. It was same rank as Charles. So it was easy to guess.

In a show of respect, Rain bowed slightly before starting to search for any valuable items.

***

After a few minutes, he found what he was looking for.

The thing Rain got from him was a high-tier space ring, and the space inside it was quite wide.

[Note: These are the storage sizes of the space rings.

Low-tier space ring-around 1×1×1 meter space.

Mid-tier space ring-around 5×5×3= 75 cubic meters.

High-tier space ring-around 10×8×4= 320 cubic meters.

There are also supreme-tier space rings that never appeared in the game. There are also chances that different space rings have different storage capacity even though there have same tiers.]

Rain took a deep breath and surveyed the space ring, taking in the vast array of valuable items it contained, including documents related to military operations and wars and various weapons for self-defense.

But what caught his attention was the Foundation Building Elixir. 

Legend had it that the military's general had acquired this elixir by killing the leader of an alien race.

The elixir was so lucrative that even the gentlest and kindest students of the academy had been tempted to become spies for the evil organization.

As Rain looked at the elixer, he couldn't help but feel a sense of urgency.

The elixir was the reason he had come, and he knew he had to act quickly.

Only those below D rank could use it, and he couldn't risk waiting for the evil organization to arrive and steal it away.

But first, he wanted to pay his respects to the brave soldiers who had lost their lives. Rain carefully made a grave for them, bowing his head in respect before sealing the entrance to the cave with a large boulder, where he planned to spend the night.

After clearing the cave and making the grave, the killing aura that had surrounded him began to subside. Rain found a place to sit, and took out the bottle of the elixir.

As he sat down, Rain looked at the bottle of the elixir in his hands and drank it in one gulp.

The revolting taste of rotten milk filled his mouth, causing him to gag and choke, but he forced himself to drink it down.