Just as Stark was blown up by himself, and Jarvis contacted his assistant Pepper and the hospital, three figures appeared around the huge corpse of the giant beast in the underground world deep underground.

"What a big guy, this kind of physical fitness should be the strongest on this planet, right?" "Killian", with long hair and glasses, couldn't help but be surprised when he looked at the Leviathan floating like a hill on the sea.

"This thing is very similar to the giant beasts on that planet." "Obadiah" rubbed his chin.

"Jin Ji" looked at Leviathan's scales and nodded. On that planet, monsters that were a few points larger than this abounded, and that time, they used the Demon Spirit Stone to destroy the civilization on that planet in a few minutes, and harvested a large amount of dark power. But if I'm not mistaken, there seems to be a small bug with three heads escaping from that planet?

"Jin Ji" shook his head, that kind of thing is too long, thousands of years have passed, it's not that he has a bad memory, but that kind of fact is not worth wasting energy to record.

Anyway, this big guy can make good use of it.

"How many Demon Spirit Stones have appeared now?" "Kim and" asked.

"Brother Heijin, we have collected 12 demon spirit stones, and the speed is still like this, it can't be fast." "Killian" frowned.

"It's okay at this speed, take it all out." "Jin Ji" looked at the body of the giant beast, and the corners of his mouth curled, "We're going to make a big guy this time......"

In the New York Special Hospital, Thoracic Surgery, Intensive Care Unit, Stark slowly woke up.

"Tony!" Pepper, who looked a little haggard, grabbed Stark's hand, his eyes red and he looked like he was about to cry.

Stark was stunned, his trademark cynical smile on his slightly pale face. "What's wrong, sad for your boss?"

Stark looked at Pepper's face and those eyes full of worry, happiness, joy and other emotions, and suddenly felt that Pepper was so beautiful.

Why didn't you find it before?

"No, I'm worried about my job, and obviously I don't have to change it now." Pepper burst into tears and smiled, turning her head and pressing the corner of her eye, holding back the tears of excitement.

"Boss, you're awake." Harpy, who was dressed in a suit and had a big belly, suddenly stood up from a chair not far away, saliva still lingering at the corners of his mouth.

Stark smiled at the fat security guard who was a little stupid but genuinely cared about him, and pointed at the corner of his mouth.

Harpy quickly wiped the saliva off and wiped it on the suit, "It's not saliva, it's definitely not saliva, boss, you know." ”

Stark smiled and nodded, his eyes involuntarily looking to his chest, and then he froze.

...... on his chest Plugged in with a tube?

Stark's face changed wildly, and he tore open his hospital gown to see the tube attached to the belt-like device tied around his waist.

He even saw the screen of ECG monitoring from his belt!

Stark sat up suddenly, touching the tube and the gauze on his chest, his face as ugly as a pig's liver. "What's going on!"

Stark's voice seemed to roar.

"Your heart is already ...... I don't need it anymore. Pepper hurriedly supported Stark, his eyes immediately turned red again, and his tone choked, "There is no transplantable heart suitable for you, the doctors unanimously decided to replace an artificial heart for you after consultation, and Huaxia's magnetic levitation artificial heart is the most advanced, so ......"

"So my heart is made of steel now?" Stark's voice was a little dumbfounded, a little unacceptable.

"Go home, I want to go home!" Stark got out of bed and walked out, he couldn't stop him, his steps were a little staggering at first, but he didn't feel anything as he walked, but Stark's face was still a little pale.

Anyone who loses their heart and is replaced with an artificial heart can't easily accept it.

What's more, he was completely unaware?

Of course, it's not who to blame, it's just an instinctive panic.

Stark's decision, of course, was unstoppable, and he was discharged from the hospital at his urging, and then went straight to the airport, returning home to Los Angeles a few hours later.

"Jarvis, do a full body test on me." Stark went straight to the basement when he got home, and when he saw the small half of the armor that had been blown black, he was immediately relieved.

"Sir, you just had surgery and need to rest." Jarvis said.

"What about the test results?" Stark hurried.

"Your heart has been replaced, the main material is titanium with the highest compatibility with the human body, the blood is supplied by a magnetic levitation rotor, the power is very stable, and the overall process is very high-end. Sir, congratulations on having a heart of steel. ”

Stark twitched his cheeks.

Heart of Steel? Lao Tzu doesn't want it, Lao Tzu wants the original one!

However, Pepper could not lie to him, if a suitable heart could be transplanted, it would be impossible to replace him with an artificial heart.

Speaking of which, he did it himself this time.

Stark slowly came to terms with the fact that he had a heart of steel.

Having Jarvis see through the heart and build a mold, Stark's eyes lit as he looked at the fan-like device, which was smaller than a normal heart.

"Jarvis, redesign this artificial heart for me to see if it's possible to optimize it, I don't want to wear a tube during strenuous exercise in the future." Stark spun off his chair and looked into Mark 2's eyes.

"I will do my best, sir. By the way, didn't you say that strenuous exercise should be replaced by Titanic? ”

Stark:......

Three days later.

Stark is fully adapted to his brand new heart.

Jarvis didn't have any great ideas, so he looked at the modeling of the artificial heart in his body and pondered.

However, even though Stark studied a lot of medical literature on the heart all night, and the actual theory was close to that of a medical doctor, he didn't have a good idea of this artificial heart.

This magnetic levitation design is really quite good, he can't tear down and rebuild, he can only modify and modify some insignificant small details, and the main structure must not be changed.

So it's better not to get it.

However, looking at the device on his waist and the wires that input electricity, Stark decided to change it.

This thing is so stupid, it can be done with a single battery, and with so many bloated devices, it's too ugly. Not to mention the wire, what do you need a wire to do with wireless charging technology?

Stark began work, and half a day later, a belt with a glowing blue and white glow appeared on Stark's waist.

The battery that supplied the rotor to turn was turned into an ark reactor by Stark, and with this his heart could have been used until he was two hundred years old, if he could live that long.

And those ECG monitoring devices were all thrown away by Stark, with hologram technology and Jarvis, an artificial intelligence, he didn't need to see the monitoring values himself.

Looking at the reactor on his waist, Stark thought about it and felt that there was something wrong with the location.

The reason why the armor made a hole in the chest to expose the reactor was not to be handsome, of course, but because the chest could directly fire the recoil beam cannon like the flying stabilizer of both hands, and then the kinetic energy was directly canceled by the recoil device on the back!

But if it is changed to open on the waist, first, the position is a little awkward, and second, if the recoil beam cannon is fired on the waist, it is necessary to install an additional thrust reverser device at the waist and hips, which is completely superfluous for his armor that is already the most perfect structure.

The most important point is that there is such an extra thing on the waist, and the internal space of the warframe needs to be adjusted!

So Stark wondered, should I change the position of my belt?

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