Ultimate Supreme Soldier King

In truth, Su Chen had always been in control of his own heartbeat rate.

After all, his extreme heartbeat could reach as high as 400 beats per minute.

The reason he maintained it at 220 was merely to lull Catherine into complacency.

230 beats!

240 beats!

250 beats!

...

300 beats!

The risk associated with using a Second Rank Shura Potion was much higher than that of a First Rank.

Because it involved suddenly increasing Su Chen's heartbeat rate from 220 to over 301 in one go!

Of course, this was only concerning Catherine.

For Su Chen, both a rate of 220 and 301 were far from his extreme limit.

What seemed to be a tense process of breakthrough was actually quite simple for Su Chen.

Death risks of ten or twenty percent were nonexistent to him.

He had originally thought that the Shura Potion would bring some adverse effects, but now it seemed that it hadn't harmed his body in the least.

Instead, his untouched limit for so long had increased by 5 beats!

Which means the Shura Potion brought him benefits, without any drawbacks.

Su Chen's heartbeat maintained at 300 and did not rise further.

As long as it surpassed 300, he would enter the ranks of the Extraordinary Realm.

To become a great master capable of contending with the Bloody Widow.

Of course, the Bloody Widow didn't use the Shura Potion; theoretically, Su Chen, who had enhanced himself with the potion, should have been weaker in terms of combat power.

"Ah, little Na, it hurts so much, I feel like I'm dying!" Su Chen's veins bulged prominently, his face twisted in agony.

As if suffering some inhuman pain.

This, of course, was also feigned.

After all, others experienced unimaginable agony when using the Shura Potion, and if he showed no signs at all, it would definitely arouse suspicion.

300 beats!

301 beats!

Breakthrough!

This time it wasn't controlled by Su Chen.

Instead, his heartbeat naturally broke through 300.

Thump, thump, thump!

Both his hearts beat violently.

Catherine also reached over a hundred beats per minute.

While Su Chen was between 301 and 320!

This was the limit of the heartbeat rate for the Extraordinary Realm.

The faster the extreme heartbeat, the more power one could unleash.

Of course, this was only one aspect of becoming stronger.

In other respects, much was also enhanced.

Such as body strength, power, speed, etc.

It was a comprehensive improvement.

Su Chen successfully used a Second Rank Shura Potion.

Just as he thought, the Second Rank Shura Potion increased his extreme heartbeat rate once again.

His true extreme heartbeat rate reached 418!

An increase of 13 beats.

Unfortunately, it didn't reach 421 beats.

So he was still at the peak of the Extraordinary Realm.

He did not cross into the threshold of Extraordinary.

However, this was already very satisfying.

At least it told him that he could break barriers through the Shura Potion.

That's also why the Shura Potion was so highly sought after, as many people use it to break their barriers.

Other people using the Shura Potion would experience side effects, a risk of death, and reduced lifespan.

But if they were not breaking barriers, perhaps they would be stuck in that state their whole lives.

Using the Shura Potion to break a barrier, despite the risk of death and reduced lifespan.

But many after breaking through, their cultivation would increase rapidly.

Very soon they achieve higher levels.

Correspondingly, their lifespan would also increase.

So the reduction in lifespan was not a big deal for them.

The only concern was whether their luck was good enough to not die.

But for Su Chen, that wasn't an issue.

As if the side effects of the Shura Potion did not exist for him at all.

He speculated it must be because of the Black Stone.

Originally, he wore the Black Stone as a pendant over his chest.

Then the Black Stone disappeared, turning into a tattoo on his chest.

He always felt the Black Stone had fused with his heart.

Once the Shura Potion's power entered his heart, it fundamentally changed.

Transformed by a foreign energy into something his body could accept.

If that's the case, then could he continue using the Shura Potion to improve his cultivation?

Now, he was only differing by 3 beats from the extreme 421 heartbeat.

If he were to use a Third Rank Shura Potion, it's highly possible he could break the Saint Realm barrier.

In one fell swoop become Extraordinary!

To possess the battle power of an Extraordinary.

Once broken through, undoubtedly stronger!

His sister in law once predicted that as soon as Su Chen broke into the Extraordinary, his strength would completely surpass hers.

Su Chen had been looking forward to that day for a long, long time, but unfortunately, for some reason, he just couldn't break through.

At his level of cultivation, practice alone was no longer sufficient for advancement.

It could only rely on opportunity.

Now, he had found one.

Unfortunately, the Shura Potion was too difficult to obtain.

Perhaps back when the Reverse Dragon Group still existed, he could get a Third Rank Shura Potion.

But now, it seems difficult.

Yet destiny would find a way to make it cross his path.

This time, Catherine didn't ask Su Chen to attack her.

Because she could feel the changes in Su Chen.

Previously, Su Chen seemed ordinary to her, posing no threat at all.

But now it was different.

Even though he still didn't feel a strong threat, at least they were at the same level.

Despite having used the Shura Potion, Catherine felt somewhat surreal at the moment.

Just a few hours before, Su Chen was still merely an ordinary person.

And in the blink of an eye, he became an existence on par with her.

Keep in mind, although she had used the Shura Potion, it was only once.

Moreover, before using it, she herself had put in tremendous effort.

After successful usage, she still endured extraordinary hardship to break from the Mortal Realm to the Extraordinary Realm.

The hardships, only she knew.

Yet for Su Chen, it was as if he had just woken up from a sleep, becoming an Extraordinary powerful being.

Simply inconceivable.

Not to mention how incredible Catherine found it.

Even Su Chen himself found it unbelievable.

What on earth was this thing that could have such terrifying effects?

This had already surpassed common sense.

Moreover, he vaguely felt that the Shura Potion seemed to have some special connection with the Black Stone.

As if the Shura Potion was part of the Black Stone!