Just under 5 years later~

A tall boy was in a courtyard doing basic body exercises with small weights attached to his wrists and ankles, with a small vest on his upper body that had small slots for slab weights, there were ten weights currently in the vest, while each weight on the boy's wrists and ankles had 2 slabs in them.

While the boy wasn't doing these exercises effortlessly, he wasn't exerting himself too drastically, which would come as a surprise to anyone who saw the letters and numbers on each of the weights, which was a small "90kg", this meant that this boy was training with 1620kg on his body, which while his body looked older and stronger than most people his age and could quite easily pass for the body of an early teen.

The weight being hefted around was a monumental amount even for the body of an adult to carry let alone a child's, but alas, to think of this boy as a simple youth would be a grave mistake, for he is the reincarnated Devil King, Damien.

As Damien came to the end of his exercises, he picked up a towel and wiped off all the sweat on his body, as he was doing this he pondered about how long it would be until he could remove the Heart Limiter in his body.

As just under 5 years have passed he continued to tear off the limiters on his body and with each additional one that he removed he was becoming arguably more inhuman but in fact he was more human than ever.

To explain it, it was like before the limiters were taken off it was like he was constantly covered and filled to the brim with tar, it affected everything he did, making it more effort to do even the most basic of tasks and most importantly, it affected how great he could be. Human talent is just a sign of the limiters being looser on some people than they are on others.

So, now with 4 out of the 5 limiters removed, Damien was edging towards Human Perfection, whether it be in Appearance or in his Physical and Mental Faculties, but thinking this, Damien had a scowl of slight disdain on his handsome face.

'Who cares about Human perfection? A perfect Human is still a human but with the Immortal Devil King Technique, I'll become something better, something more.'

As Damien pondered this, he thought about what his family would think of him if they knew their son had cast off his Humanity and became a Half-Devil and while he had an insatiable thirst for power, he had also come to respect and, in his own way, love his family.

In these 9 or so years he's spent time with them, lived with them and been loved by them, he'd slowly but surely started to return and respond to the unrequited feelings of his new family. Because of this, he'd slowly started to care what they thought about him, not to a massive amount such as wanting to give up his Devil Cultivation but simply thinking about if they would accept a Devil into their family.

Damien shook his head as he rid himself of those thoughts and steeled his resolve to cultivate his Devil Qi in preparation for the removal of his Heart Limiter.

As he looked into himself, he saw a mass of red and black gas in and surrounding his heart that gave off a tyrannical and majestic aura, as he looked at it he couldn't help but think in wonder.

'I still can't believe it. This True Devil Heart that the Immortal Devil King Technique made is truly a gift that keeps on giving'

The True Devil Heart that was made when he first broke through his Muscle Limiters was the main reason that he could complete most of the limit breaking in just under 5 years, it would usually take 10 years but the True Devil Heart refined better and purer Devil Qi.

This trait helped pressure the chains on his body even more than what his Devil Seed could achieve and this helped immensely.

It not only pressured the chains but helped fuel his muscles with more energy and let them release more power when he struggled against the chains. As he stopped thinking about the True Devil Heart and started to clear his mind, he started cultivating to prepare for the time in which he'll attempt to break the last chain that limits his body.

He'd been planning this breakthrough for about the last few weeks and finally be free of his Human limitations and once he was, he could start properly training in the Immortal Devil King Technique, which will push him into something that transcends limits for fun.

A Few Days Pass~

These past few days Damien has been cultivating non-stop, preparing himself for the biggest challenge so far in his new life, he only stopped when he had to eat with his family and when he needed to sleep, which he did very little of.

The reason he was so nervous and tried his best to prepare for this trial was that the Heart Limiter was not only the hardest to remove, it was also the deadliest one to remove as any wrong move could cause the heart to give way and stop beating killing the practitioner in the process.

So Damien, someone who valued his life, was quite anxious about failing but the more he thought about it, the more he realized he should just get it over and done with.

'Ha! Why am I so scared of dying? I was scared in my last life and I still died, so instead of worrying it's better to just push forward, not recklessly, but fearlessly, if I want to be an Immortal Devil King, I must never fear that what does not deserve it and when I do fear something, I will strive to overcome that fear, only that way, can I become strong!'

As he yelled this mentally, a light flashed through his eyes, his intent and will to fight manifested and he was determined to either pass over this hurdle or die trying, no matter whether it was the highest parts of the Heavens or the deepest parts of Hell, he would overcome anything in his way.

As he decided that today will be the day he tries to completely break his limits, he thought that it would be best if he spent a few hours meditating and calming himself so he can go up against this hurdle with a calm but unyielding mind.

A few hours passed quite quickly and Damien prepared himself, taking off the thin shirt he had on to avoid getting any sweat or blood on it and then he sat down in his usually cultivating space and clicked a remote that made sure his door was locked.

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'Don't want any of my family to come in here while I'm pretty busy turning myself into a Devil. That'd be one awkward situation to explain.'

Damien chuckled at his humor, thinking that he might be a bit mad because he's about to risk his life and he's still making jokes like that.

As he tried, he felt a painful pang in his heart as he tugged at the chain with his Devil Qi, but he just grit his teeth and kept tugging while his heart, as if seeing that he was trying to free it, became 'excited'. It started beating faster and faster and stronger and stronger, until it got to the point where if a person was in the room with Damien at the moment they would hear his heartbeat, like a fast-paced war drum, beating like the sign of an army of Devils advancing toward an unlucky destination.

*Badump! Badump!*

"Ahhh! Grrraahh! Fucking Chain!"

Damien kept on growling and howling like a beast in pain as he continued to pull on the chain that only continued to cause him more pain, pain that kept increasing with every heartbeat. Despite the pain, the heartbeat kept picking up a faster and faster pace each time while it continued to struggle, as if it knew that if it helps get rid of this chain, it will become stronger and go through some sort of evolution and while Damien appreciated it's eagerness to help, he was not very fond of the immense pain it brought.

*Badump! Badump!*

*Creak*

'Why is my heart doing this? None of the other things with limiters did what my heart is doing, seemingly wanting to break out of the limits on itself and in turn helping me, why is that?'

As Damien thought this, it suddenly struck him.

'The True Devil Heart! It's helping me by making my heart beat faster and harder to combat against the chain holding it back from it's potential. Wait a minute! Isn't the True Devil Heart gaining some kind of sentience to help the body it's in a sign of it nearing Initial Success?! Hahahaha! Those who suffer misfortune are soon to be blessed with fortune, despite this pain and danger, it's the perfect thing to push my True Devil Heart to excavate some of it's potential and let it get to Initial Success!'

As Damien thought this he started tugging on the chain with even more gusto than before and while it caused him monumental amounts of pain, it also caused his Devil heart to start to go through a change, the change is that instead of it continuing to collect towards the middle of his heart, it starting spreading out towards the walls, valves and atrium's of the heart and started coating them in pure, concentrated Devil Qi.

As Damien saw this, he was ecstatic even though he was in an astounding amount of pain.

'Well looks like I'll have to try even harder if I want it to fuse and complete the transformation into an Initial Success True Devil Heart'

As Damien thought this, he winced but pulled even harder than before and--

*Badump! BADUMP!*

*Creak!*

"Grrrahhh! Fucking Christ that hurts! Come on just break you impudent chain!!"

Damien spat this through gritted teeth, with a fire in his eyes that showed that he was severely incensed over the fact that he was trying much harder than he was when he tried to break the other limiters but to no avail, he still had yet to break the chain.

*BADUMP! BADUMP!*

As a result of his anger, his heartbeat kept increasing in speed and his heart kept beating harder, this finally showed some results

*BADUMP!*

*Creak! Crack!*

The sound of chains being strained and slowly cracking entered Damien's ears and he was then encouraged to further his efforts thinking.

'Hmph! I'll see how long you can hold out for, you piece of shit chain, I will break my limits, so get ready to be snapped!'

As he thought this, he let out a roar and started pulling at the chain with all his might, every part of his body was stressing as much as it could, making as much energy as it could, just to break the chain.

*Crack! Crack!*

But still, even though there were more cracks, the chain hadn't broken yet

"GrrrRRAHHHHH!"

Damien was completely infuriated, so much so that he threw caution to the wind and pushed himself past his limits and a soon as he did blood started coming out of his pores, out of his eyes, nose, mouth and ears, the rate at which his heart was beating was so fast and hard that it was putting an ungodly amount of stress on his veins and arteries that some of them had even started to tear

*Badump!badump!badump!badump!*

*Drip drip*

As his heart still stubbornly beat faster and faster, the blood coming out of his body also came out faster, so much so that it had started dripping down his body and onto the floor and was forming a puddle around him.

But at this time, instead of a grimace of pain on his face Damien had a manic smile threatening to split his face in two because of the pain pushing himself past his limits, his incredibly white teeth contrasted with the blood covering his body and along with his eyes that seemed as if they were two yellow fires, he gave off a terrifying aura and if anyone were to see him, they would say that he is not a 10-year-old child, he's a 10-year-old monster, nothing more and nothing less.

The reason he's smiling in an insane manner is because of the chains and their current condition--

*Crack! CRACK!*

--The motions of them breaking were in full swing now.

Damien's efforts were paying off and the chains were shaking because of the strain and as if they're scared of the young boy trying to break them and this filled Damien with intense happiness as he was ever so closer to becoming something better, something more powerful!

"Hahaha! Break! Come on, Break! Haha!" as Damien was hysterically laughing at how he's finally beating the chain, a sudden sound, which wasn't too loud but was heard by Damien instantly, came from the chains--

*CRACK!*

*SNAP!*

Finally, after what seemed like an eternity, the chain snapped but before Damien could feel happy or cheer because he'd finally broken the chain, his body was drained of all energy and froze as still as a statue.

'Hm? What's happening, why can't I move!? And I can't speak, Why?'

As Damien was wondering this, the True Devil Heart completely fused with his heart and it looked like his Heart was encased in Devil Qi.

This was advantageous because while Righteous Cultivators focus on the Dantian, Devil Cultivator focus on the Heart, it's where they store their energy, and that's not to say that they don't use their Dantian to store energy, they do, but they focus more on refining their heart and body to be stronger to hold more Devil Qi instead of storing Qi in the Dantian.

So in conclusion, if the heart is encased in Devil Qi and strengthened by a Devil Heart, it's better protected against physical impacts, lessening the chances of the Devil Cultivator's cultivation getting crippled.

As Damien was laying there, he felt his blood crawling up from the floor back onto his body and then the blood in his body started leaving his body and joining with the blood outside of the body and then forming a cocoon around him, he was alarmed at this process and anxiously started thinking.

'Why is this happening? Did I do something wrong?!'

But as he was thinking this, he suddenly passed out - like his body knew what was about to happen and allowed it, putting him to sleep so he wouldn't mess with the process.