Rusted Key

Unbeknownst to him, a full week had passed since Mosen awakened his Frozen Lineage Factor and his past life's memories.

One of the two prisoners who had ill intentions towards Mosen was frozen solid in an ice flower, long dead. The other was torn to shreds by the Military Wolves and became their prey.

After a week of adaptation, Mosen discovered that his use of the Frozen Lineage Factor was tied to his stamina, much like Marco the Phoenix's Flames. He could use it continuously as long as his stamina didn't run out.

Unfortunately, due to the modifications from the Lineage Factor, Mosen's body hadn't fully adapted to his mechanical heart, resulting in very poor physical condition and naturally low stamina.

Therefore, Mosen set a small goal for himself: to improve his physical condition as quickly as possible.

With Life Return, the best way to improve his physical condition was to eat. Mosen, like Luffy, began to eat voraciously, converting the food into life energy to strengthen his body.

As a result, after a week, the food in Mosen's room was running low.

This food was originally meant to last Mosen two months. He had only been in Extreme Cold Hell for a month, yet he had already consumed most of it.

Previously, when Mosen first arrived at Impel Down 5th Layer, his body hadn't adapted to the mechanical heart, making eating difficult. He relied entirely on Life Return to forcibly absorb nutrients from food to maintain normal physiological needs, consuming less than a fifth of the food in over half a month.

But with the awakening of the Frozen Lineage Factor, Mosen had finally achieved "unity of body and mind." His mechanical heart was no longer a burden. On the contrary, it could slowly enhance his Frozen Lineage Factor abilities, allowing Mosen to grow stronger bit by bit.

Of course, the prerequisite for getting stronger was having a physique that could support it, which would also accelerate the evolution of the Frozen Lineage Factor.

With both factors combined, Mosen had consumed almost all of the remaining four-fifths of his food in just one week.

Fortunately, after a week of "dietary therapy," Mosen's body had developed some muscle definition and he no longer looked so gaunt and weak.

Besides this, Mosen also discovered something else: a rusty key hung around his neck. The design of the key was clearly not from this world.

Mosen was no stranger to this key; he had bought it at a street stall a few days before his transmigration.

Initially, the stall owner asked for 500. Mosen thought the key was an antique and, after a lengthy negotiation, managed to get it for 100. At the time, he thought he had struck gold.

Afterward, Mosen excitedly took the key to an expert appraiser. However, the expert told him it was just an artificially aged key with no collectible value.

Mosen then realized he had been swindled by the stall owner. Taking it as a lesson learned, Mosen strung the key on a red string and hung it around his neck as a reminder of his wasted money.

But Mosen never expected that this key would transmigrate with him.

After awakening his past life's memories, Mosen was startled to see the key.

He had been reborn, yet this key had followed him. It was obvious the key was no ordinary item.

So, Mosen studied the key in his spare time but found nothing unusual about it.

Today, Mosen had a sudden idea and cut his finger to perform a blood recognition ritual, but nothing happened.

Mosen simply tossed the key aside and ignored it. He felt that replenishing his food supply was more important than researching the key.

Without food, his strength growth would be limited, and his body's recovery would be affected.

With this thought, Mosen walked out of his room, oriented himself, and headed towards the exit of Extreme Cold Hell.

Along the way, Mosen saw many shivering prisoners. These inmates were Great Pirates with bounties exceeding 100 million, many of them Devil Fruit users. They glared fiercely at Mosen, as if they would pounce and devour him at any moment.

Mosen was used to this. After a week of adaptation, he had a basic understanding of why these prisoners kept staring at him.

The reason was simple: there were no Jailers in Impel Down 5th Layer in the past. It was too cold here; even Den Den Mushi couldn't be exposed to the wind and snow for long, let alone people.

The house Mosen now lived in was also built by Magellan's men after Mosen's arrival. The walls, doors, and windows of the house were reinforced with Seastone to prevent forced entry by prisoners.

In this world covered in ice and snow, having a house that could block out the wind and snow meant having hope of survival.

Therefore, on the first day the house was completed, the prisoners attempted to take it over. However, they quickly discovered that the house was exceptionally sturdy and impossible to break into by force.

In this regard, Magellan was quite farsighted.

So, the prisoners set their sights on the house's owner, Mosen. If Mosen died, the house would be theirs. The two prisoners who had stared at Mosen when he first awakened his past life's memories had the same objective.

As for why the prisoners didn't directly try to steal the house key, it was because of the domesticated Military Wolves.

Wolves are very intelligent animals. They knew that the Impel Down Jailers brought them food. If the Jailers died, their food source would depend on hunting the prisoners.

Furthermore, Impel Down had its own methods to ensure the Military Wolves protected the Jailers.

Therefore, although Mosen couldn't control the Military Wolves, they would actively protect him. If any prisoner dared to attack Mosen, the Military Wolves would pounce without hesitation and kill them.

The prisoners, hesitant to act, naturally didn't dare to attack Mosen. They could only hope that Mosen would freeze to death quickly or that some other accident would occur, allowing them to get Mosen's room key.

However, things did not go as they wished. Mosen not only didn't freeze to death but also grew stronger day by day.

Seeing Mosen, who was full of life, the prisoners gritted their teeth in hatred. If it weren't for the Military Wolves, they would have swarmed and killed Mosen long ago.

Mosen was somewhat aware of the prisoners' thoughts but remained very calm. He had now fully adapted to the Frozen Lineage Factor and even developed some new skills. With the Six Powers and the awakened Frozen Lineage Factor, Extreme Cold Hell was his domain.

Facing these prisoners who had been imprisoned in Extreme Cold Hell for who knows how long and whose strength was less than a tenth of what it used to be, he couldn't say he could definitely win, but he could definitely protect himself.

If he also considered the Military Wolves that followed him, Mosen was even confident he could counter-kill any prisoner who dared to attack him.

The key is the protagonist's transmigration cheat, but it has nothing to do with the protagonist's growth. The protagonist's strength comes from his Lineage Factor. New book, please recommend and collect. Thank you all for your support.