Symptoms to prove that I've become Immortal

In a small cell in a large dungeon sits a boy, his name is Tan Lin. He is clearly around 12 years old and there are visible cuts, bruises, and fingernails missing.

'I've been locked in this cage for months now... all because I am a trash. I'm no good at cultivating or at alchemy! The only method that I'm allowed to learn is known as "Body Strengthening". Sounds pretty simple right? It involves the user to get through excruciating pain, and be beaten every day, as well as tortured.' Tan Lin thought to himself, he'd been tired of this treatment. He had to find a way out.

'Why do I have to live like this? Simply because im untalented? I'm done. Nobody has ever treated me like a human for as long as I can remember, why should I put up with this? I'm going to get out of here.' Tan Lin thought to himself while he sobbed in his cell. He had thoughts like this before, but now he had finally thought of how he'd accomplish this task.

"Hey! Keep it down in there! If I hear you crying again there will be no food for a week!" A guard yelled at Tan Lin.

A serious expression appeared on Tan Lin's wet face

'Yeah, food. They feed us the failed pills from alchemy experiments. Some of us have even died, while others mutated into something unrecognizable!' Tan Lin was fuming with anger, but he had no where to vent it, so he just gripped his bloody nail beds.

"Just keep at it slave, when your nails regrow, it'll just happen again!" The guard said as he laughed.

"I'll be quiet sir, just please.. don't do it again!" Tan Lin begged the guard while staring at the weapon at the guard's side. It was a level 2 Treasure, to someone like Tan Lin, this would easily kill him with 5 strikes.

"Oh wow, you're so stupid it amazes me. Is your brain just trash in general? We told you if you spoke again we'd start ripping out teeth. But there you go, speaking. I'll get it scheduled, don't worry." The guard said smiling even harder, he then moved closer and spit on Tan Lin.

Tan Lin started crying even harder and screaming, he knew there was no way to escape the torture that they inflict on him.

Just then, a hooded man entered the room and whispered something into the guard's ear.

"Oh, how convenient. Looks like your teeth will be saved for now." The guard unlocked the cell and grabbed Tan Lin's arm and dragged him out.

He then looked at him in the eyes with a smile and said "You're being transfered. You're going to be the new disciples punching bag, congratulations! You will now be tortured on the daily! As well as them being around the same age! Hahaha"

Tan Lin had tears starting to form, he couldn't even say anything and just let out a light whimper.

"Oh but here's the good news. If you survive 2 years you will be promoted to an outer disciple, do your best to stay alive. Kid." The guard then dragged him upstairs out of the dungeon and threw him on the floor.

"Put these on." He threw fresh white clothes at Tan Lin

"When these turn completely red, you'll be considered as a true punching bag, enjoy." The guard seeing that Tan struggled to put it on forcibly changed Tan's clothing and then exited.

Soon another man entered the room, he was big and very scary looking. He had a scar across his entire face, he was the embodiment of the word "Warrior".

"Hey punching bag! Today starts your training, when we leave this room be prepared to be thoroughly assaulted! If you make any noises while being hit you will be hit by a stronger disciple! Good luck!" The man said quickly, but with a strict tone.

The man then threw Tan out of the room and he fell outside, there were 12 disciples waiting for him, and he heard screams. There were many corpses and many completely red "Punching bags".