Become Infinitely Stronger Starting from Marvel

In the evening, Kevin stood in front of his cottage. A tightly wrapped express delivery was placed at the door.

He bent down and picked up the express, but just before he was about to enter the door, he was stopped by someone behind him.

"Hello, are you ordering door-to-door delivery?" The courier boy checked the address on the delivery note and asked Kevin who was about to enter the house.

Seeing that his delivery had arrived, Kevin turned around and nodded, "Yes, I ordered the delivery, the last digit of the mobile phone number is xxxx."

The courier was stunned for a few seconds when he saw Kevin turning around, then he took out the receipt and said embarrassedly: "Please sign for it. You ordered a lot of things. Do you need my help to bring them into the house?"

After signing his name casually, Kevin shook his head and said, "No need, just leave it here. I can carry it in myself."

"Oh." The courier boy nodded, took the large package off the car with difficulty, put it in front of Kevin, and then looked in surprise at the handsome boy in front of him who looked a little thin and easily grabbed the express package weighing hundreds of pounds with one hand and walked quickly into the house.

After entering the house, Kevin couldn't wait to open the express package, which contained a custom-made glass bathtub that was 160 cm long and 70 cm wide, as well as a 50-centimeter-long glass rod.

As for the express package that was initially placed at the doorstep, it contained 10 liters of ultra-pure sulfuric acid with a concentration of 98% stored in a glass container.

Because it was too troublesome to purchase through formal channels, he bought it from the dark web.

At this moment, under the light, these glass products are shining outward and look extremely exquisite.[T\N: and dangerous]

Kevin moved the customized glass bathtub into the bathroom with great anticipation, then put on protective clothing, took out a few buckets of purified water purchased from the Walmart supermarket next door, and poured them directly into the glass bathtub.

Then he unscrewed the glass lid of the concentrated sulfuric acid and slowly poured the concentrated sulfuric acid directly into the inner wall of the glass bathtub.

During the dilution process, as he watched the concentrated sulfuric acid and pure water mix together, he continued to stir the water gently with a glass rod, continuously releasing heat.

Watching the colorless and odorless sulfuric acid pouring into the glass bathtub, when he felt it was about time, looking at the slightly hot dilute sulfuric acid bath inside, Kevin took off his gloves and gently reached in.

Feeling the slightly warm water temperature, Kevin removed all his clothes except for the hood, then slowly lay down in it with an expressionless face, leaving only his head exposed, feeling the slight corrosion of the super-diluted sulfuric acid on his body.

As long as your mindset does not slip, there are always more solutions than problems. Since the so-called exercise is a process of muscle destruction and repair, it is better to go straight to the point in one step and add some strength to the skin epidermis.

At this moment, his physical fitness has reached 1.3, and his skin epidermis maintains elasticity while also having considerable toughness.

After testing, it was found that an ordinary knife needs some force to cut the skin, and the wound will stop bleeding quickly within 30 seconds and scab over within a day. These behaviors have begun to move towards dehumanization and are also the reason why he dares to take a sulfuric acid bath.

"I'll just sleep here tonight." Kevin thought to himself, then he calmed down, ignored the slight stinging sensation brought by the sulfuric acid, began to practice the Purple Glow skill, and soon entered a state of oblivion of both himself and the world.

During this process, the sulfuric acid inside the glass bathtub continued to corrode Kevin skin.

Although the corrosiveness of sulfuric acid was weak due to dilution, Kevin skin gradually began to be unable to bear it when the time was extended to several hours.

However, as the skin epidermis was corroded, Kevin healing ability began to take effect, thus maintaining a delicate balance between destruction and healing.

At seven o'clock in the morning of the second day, Kevin, with a purple face, exhaled a long breath of air and slowly took back the energy that flowed through his body into his core.

Feeling the eight strands of energy quietly dormant in his energy core, Kevin slowly opened his eyes, feeling emotional.

'The improvement in aptitude brought by the 1.3 physical fitness has doubled my training efficiency. The energy accumulated in one night is actually equivalent to the total of the previous two nights. If the physical fitness was 1.4 or 1.5, I would...hiss.'

Kevin took a deep breath while thinking. Just as he was about to get up, he found that the skin below his neck was pricking like needles.

Looking down, the skin in the bathtub was red as if dripping blood.

He climbed out of the bathtub almost trembling all over. The stinging sensation on his skin, especially in his lower body, made him gasp for air continuously.

The feeling is as stimulating as being skinned, and the body seems to be pickled in sulfuric acid.

As Kevin walked out of the bathtub, a new description appeared on the status bar.

You completed a 9 hour, 17 minute, 26 second bath in diluted sulfuric acid...

Repeat 5 times to increase the upper limit of physical fitness by 0.1.

Looking at the prompt displayed on the instruction bar, Kevin eyes lit up. His attempt was indeed correct. The destruction and regeneration of the body can indeed improve physical fitness. Next time he has a chance, he will lie in the sulfuric acid pool and use electric shock therapy. The effect of training both inside and outside the body will surely be even better.[T\N: do not do this in home, you are not the mc]

Kevin got up, endured the stinging pain from his skin, wiped the water droplets off his body bit by bit with a bath towel, and put on his clothes.

Looking up at the time, it was still early for school, so Kevin simply swallowed the food to fill his stomach, and then did push-ups in the room.

With strength reaching 1.4 and physical fitness reaching 1.3, Kevin physical fitness has begun to gradually approach the limits of the human body.

he doesn't even need energy to sustain himself, he can do more than 3,000 push-ups at a time relying solely on physical strength.

Enduring the stinging pain from the friction between skin and clothes, Kevin spent an hour completing more than 5,800 push-ups in standard posture before he fell to the ground exhausted.

During this process, sweat seeps out of the skin like salt on the wound.

"It's too slow. After my physical strength has improved, it takes too long to train with my own weight alone. I really need to train with additional weights added." Kevin looked at the wasted time and was a little dissatisfied.

Looking up at the time, there were still about ten minutes before class. Kevin calmly picked up his schoolbag, opened the door and rushed to the school.

The journey that was almost hell for him three days ago was no longer challenging at all for Kevin at this moment. He did not even take a deep breath during the whole process.

The only pain is the friction and stinging caused by clothes rubbing his skin when running.

On the road, his running body has almost formed an afterimage. Passersby were overtaken by him before they could even react and could only stare at his back in a daze.

You completed a running distance of 2024 meters with an average pace of 2 minutes 20 seconds/km, repeated 15328 times, and your body suffered 0.11% long-term damage. You can recover on your own when your physical fitness reaches 1.5.