One Piece: Undercover Starting from Impel Down
Chapter 2

Lineage Factor Awakening

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5mo ago

Mosen's parents were killed by Celestial Dragons. At the time, he hadn't awakened his past life memories, but his hatred for the Celestial Dragons made him join without hesitation after learning of Dragon's dream.

Why else would he train so hard, even undergoing dangerous Lineage Factor modifications, if not to gain immense power and kill the Celestial Dragons to avenge his parents?

Dragon had saved Mosen back then and naturally knew of his tragic past. After a slight hesitation, he agreed to Mosen's joining. However, he didn't assign Mosen any specific tasks. At that time, Dragon had only conceived the idea of overthrowing the Celestial Dragons; the specifics of what to do and how to do it were still a complete mystery.

Dragon told Mosen that he would go search for a way to overthrow the Celestial Dragons' rule and instructed Mosen to remain in the Navy for the time being to recuperate.

Mosen excitedly agreed.

Then, Dragon gave Mosen a Den Den Mushi for easy contact and left.

For the next half year, Mosen stayed in Loguetown, recuperating.

After more than half a year of recovery, Mosen's body had basically healed. However, during his Lineage Factor modification, his original heart had been replaced with a Mechanized Heart.

His body had never been able to fully adapt to this Mechanized Heart, causing Mosen to become thinner and thinner throughout the year.

If it weren't for Life Return, which allowed him to forcibly absorb energy from food to nourish his body, Mosen would have long since died from malnutrition.

Meanwhile, the Navy, after confirming that Mosen's body had no issues, assigned him to Impel Down.

This was because Vegapunk's experimental records stated that although Mosen did not gain abilities related to the Ice-Ice Fruit after his Lineage Factor modification, he had become immune to the cold.

This cold-resistant physique was perfect for being assigned to the Extreme Cold Hell on the Impel Down 5th Layer to contribute.

Coupled with Mosen's mastery of the Six Powers' Life Return, his strength wasn't too bad. With the assistance of the Military Wolves, dealing with the prisoners on the verge of freezing to death in the Extreme Cold Hell on the Impel Down 5th Layer shouldn't be a problem.

As for Mosen's loyalty, there was even less to worry about. Mosen was sent by Vice Admiral Garp's son, Monkey D. Dragon. Suspecting Mosen's loyalty would be akin to suspecting Vice Admiral Garp's loyalty.

Furthermore, Mosen's immediate agreement to participate in Vegapunk's human experimentation had put the Navy at ease.

His willingness to participate in experiments with such a high mortality rate, his selfless spirit of sacrificing himself for the future of the Navy, spoke volumes.

Thus, Mosen was sent to Impel Down and became an ordinary Jailer in the Extreme Cold Hell on the 5th Layer.

Although he was called a Jailer, the Extreme Cold Hell on the Impel Down 5th Layer was so cold that even Den Den Mushi couldn't connect. Other Jailers rarely entered the Extreme Cold Hell, except to feed the Military Wolves. Mosen was the only Jailer permanently stationed there, making him the de facto Warden of the 5th Layer.

It had been over half a month since Mosen arrived at the Extreme Cold Hell on the Impel Down 5th Layer. During this time, Mosen could clearly feel that in this icy environment, the side effects of his Mechanized Heart seemed to have completely disappeared.

Not only that, but in the past few days, Mosen had also felt a faint sense of control over the ice and snow in the Extreme Cold Hell, as if the Lineage Factor Vegapunk had mentioned had awakened.

Mosen was extremely excited about this and continuously practiced controlling his abilities. It started with only being able to control ice and snow through touch, and gradually progressed to manipulating the surrounding ice and snow without touching it, gathering them around him and condensing them into various shapes according to his will.

As Mosen became more proficient in using the ice-based Lineage Factor, his Mechanized Heart also changed, finally integrating completely with him.

At this point, Mosen could condense ice and snow into various weapons with just a thought, replicating Aokiji's ice blades and two-pronged spears.

In a sense, the awakened ice-based Lineage Factor was equivalent to being given an Ice-Ice Fruit for free, one that was unaffected by Seastone or the sea.

The only drawback was perhaps not being able to elementalize like Aokiji. Overall, it was similar to the situation of the cyborgs of the Vinsmoke Family, Sanji's siblings, a case of give and take!

The moment Mosen's body and mind completely merged, it was as if a mechanism in his mind had opened, and a flood of memories from his past life surged forth, causing Mosen's memories to become jumbled, leading to the scene at the beginning.

After sorting through all his memories, Mosen sighed. So, was he now a spy planted in the Navy by the GM Army?

Although the GM Army hadn't been established yet, in every sense, he was indeed a spy, wasn't he?

Thinking of this, Mosen felt a wave of speechlessness. According to his past life memories, the Pirate King Roger had only been executed this year, meaning it was Grand Line Calendar 1498, 22 years before Luffy set sail. It seemed he had arrived a bit early!

"Awooo~"

The howling of wolves from outside the snowdrift interrupted Mosen's thoughts. Mosen paused, slowly got up, and climbed out of the snowdrift.

"Big brother, this guy is still alive!"

"Damn it! Buried in the snow for so long and this guy isn't even frozen to death. He's a freak. The Military Wolves are coming, let's retreat."

With that, two prisoners, one large and one small, turned and fled.

Seeing this, Mosen frowned. The two prisoners were less than 5 meters away from him just now. Although the prisoners in the Extreme Cold Hell wished he would die quickly, none dared to attack him because of the Military Wolves. These two, however, had clearly intended to kill him.

Mosen's expression darkened as he thought, I've awakened the ice-based Lineage Factor. In this icy environment, why should I fear them? Why not cooperate with the Military Wolves and make an example of them!

With that thought, Mosen snapped his fingers.

The next second, Mosen felt a surge of power from within him. The surrounding ice and snow, under the control of this power, formed two spears, which then shot directly at the two prisoners.

However, these two spears did not hit the prisoners. It was as if they had eyes in the back of their heads; without looking back, they easily dodged the attack of the two-pronged spears.

"Observation Haki, huh? That's understandable. For pirates with bounties over 100 million Berries 22 years ago, Two Types of Haki should be standard," Mosen muttered to himself.

"Big brother, this guy just attacked us, and the Military Wolves are surrounding us too!" said the man with the rough face.

The short man's expression turned grim. In his memory, Mosen hadn't attacked any prisoner in the Extreme Cold Hell for over half a month. Was he planning to make an example of them today?

"Big brother, what should we do?"

"You hold off these Military Wolves, and I'll go kill him! At this point, running is impossible. If we keep running, we'll just be caught and bitten to death by these Military Wolves. We might as well fight!"

"Okay! Big brother, I'll listen to you. But big brother, it seemed like this guy used some kind of ice-controlling ability just now. You need to be careful."

"Impossible. Controlling ice and snow is the ability of a Logia user, either the Ice-Ice Fruit or the Snow-Snow Fruit. The user of the Ice-Ice Fruit is the Navy's monster rookie, Kuzan. The Snow-Snow Fruit hasn't appeared in many years. If this guy really has the Snow-Snow Fruit's abilities, the Navy would definitely focus on cultivating him, not send him to Impel Down. Besides! Even if he has the Snow-Snow Fruit, I'm not afraid. I'm a Great Pirate with a bounty of 180 million Berries. Am I going to be afraid of a mere Jailer? You just need to keep the Military Wolves busy." With that, the short man charged towards Mosen.

Seeing this, Mosen showed no panic. He was already proficient in the Six Powers and had mastered Life Return. Although his physical condition had become somewhat weak due to the Lineage Factor modification, he could still fight for a short period.

And this prisoner had been locked up in Extreme Cold Hell for who knows how long. His strength was less than ten percent of what it used to be, so dealing with him shouldn't be a big problem.

Besides, even though Mosen hadn't experienced this innate ice-control talent in his past life, he'd seen enough. He'd watched shows like One Piece and Fairy Tail, which were full of hot-blooded shonen manga. These anime basically always depicted ice-based abilities.

Even if that wasn't enough, Mosen had played games like "Poisoned Milk Powder" for over a decade in his past life. His main character was an Ice Mage; replicating a few skills wouldn't be difficult at all.

When it came to developing the Frozen Lineage Factor, Mosen, standing on the shoulders of giants, had far more tricks up his sleeve than the future Marine Admiral Aokiji.

With that thought, Mosen slowly spread his hands. Under the pull of the cold air, endless ice and snow condensed in his palms. Frost formed the bow, and snow the string, as a crystalline ice bow radiating cold energy appeared out of thin air in Mosen's hand.

Mosen drew the bowstring, and the surrounding ice and snow automatically gathered into a crystal-clear ice arrow, which he shot towards the short Pirate.

Seeing this, the short Pirate sneered and casually dodged Mosen's attack with a slight sidestep.

"Heh! A child's attack. With Observation Haki, this level of..." Before the short man could finish speaking, his Observation Haki began to blare warnings. The man looked back and realized that the ice arrow Mosen had shot had actually flown back.

What's more, the ice arrow had been continuously absorbing the surrounding ice and snow as it flew, growing thicker and longer!

"How is this possible! You can actually control ice and snow. Are you a Snow-Snow Fruit ability user?" the short man exclaimed, narrowly dodging the ice arrow.

Mosen, of course, wasn't foolish enough to reveal his abilities to the short man. He continued to draw and shoot, sending out four ice arrows that attacked the short man under Mosen's control.

The short man could only keep dodging, avoiding the ice arrows' attacks.

During this time, the short man had considered charging straight at Mosen despite the ice arrow attacks, but Mosen would always evade his attacks using Geppo and Soru.

A few minutes later, the short man's movements began to slow. Mosen's lips curved slightly. How much stamina could these prisoners have after being locked in Extreme Cold Hell for so long? Mosen's initial plan was to deplete the prisoner's stamina with ice arrows and then deliver a finishing blow.

The short man understood Mosen's plan by now, but he had no escape route. With ice arrows in front and Military Wolves behind, where could he run?

Time ticked by, and the short man's movements became increasingly sluggish. One ice arrow had even hit him directly.

However, Mosen remained unfazed. He feared the short man was faking it, trying to lure him closer.

Looking at the unmoving Mosen, the short man gritted his teeth and cursed, "Bastard! I'm acting so well, and you still won't come closer. How cowardly are you?"

Mosen smiled but said nothing. It was just impotent rage!

"You coward!"

"Are you even a man? Fight me fair and square if you dare!"

"Come here, you coward!"

The short man's curses grew fainter and fainter. Mosen estimated that he was truly at his limit now.

To celebrate the awakening of his Lineage Factor and his past life memories, Mosen decided to give the short prisoner a grand send-off.

Mosen took a deep breath, and the ice bow in his hand instantly expanded several times. Mosen drew the bow horizontally, and the surrounding ice and snow, under the control of Mosen's Frozen Lineage Factor, converged madly onto the bowstring.

"Sleep... forever!"

As Mosen whispered, a massive ice arrow shot out. The short man, completely exhausted, had no way to dodge and was hit directly. The four small ice arrows circling in the air also shot forward.

The next second, the ice arrow exploded, forming a giant ice flower, completely encasing the short man within it.

After unleashing this attack, Mosen, drained of stamina, felt a wave of dizziness and slumped to the ground.

New book seeking collection and recommendations. Thank you all for your support.

End of Chapter
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