As soon as Guan Lang thought that his physical strength might be promoted to E-rank, his originally resistant psychology was immediately calmed down.

500 km, although it sounds a little scary, is not completely impossible.

With these thoughts, Guan Lang took a shower and hurriedly fell asleep.

The next morning, maybe not in the morning.

3:40 a.m. to be exact.

It was still dark outside, and the air was a little cold.

Guan Lang changed his clothes and went out in the twilight.

Perhaps it's because he's getting better and better sleep.

Since getting the system, the amount of sleep he needs to regain his energy has been getting shorter and shorter.

About three hours of sleep was enough to restore him from the day's work.

Guan Lang tightened his collar and touched the pockets of his two jackets, which were filled with high-calorie food to supplement the energy consumption of strenuous exercise.

Walking out of the street, Tiannan and Peacetime at four o'clock in the morning are simply two completely different worlds.

The asphalt road, which was full of traffic during the day, is now empty, and there is not a single car.

The traffic lights in the distance were still flashing, although there were no vehicles that needed its instructions.

The yellow beams of light projected by the street lamps on the side of the road illuminate the surroundings, which makes this "ghost town" like a scene a little lively.

Guan Lang rarely wanders the streets at this point in time, and after fastening his shoelaces, he opened his legs and started running.

The soles of their shoes stepped on the stone bricks of the sidewalk, and the sound of clattering footsteps sounded in the silence.

Guan Lang breathed while recalling the essentials of the land flying technique.

Land flight is broadly divided into two parts.

I usually practice the cultivation method, which can subtly improve the strength of the legs, and at the same time build up a sense of qi in all parts of the legs.

And now what you really need to use is the footwork of actual combat, and the internal force flows into the legs through the sense of qi.

Guan Lang had also practiced actual footwork for a period of time before, so he was already in the chest.

Although this body method was given a very bluffing name, it ultimately originated from a set of track and field textbooks.

Therefore, its effect is roughly divided into two categories, one is similar to long-distance running, the internal force in the body operates, focusing on restoring physical strength, so that people can travel long distances like horses, and consume less internal force. The downside is that it can't burst out at breakneck speeds.

One is similar to sprinting, focusing on explosiveness and power, and consuming more internal force.

The first half of Guan Lang's practice focuses on practicing long-distance running.

So although the system cheats, it doesn't completely force him to die.

The internal force slowly flowed into his legs and whole body like silk threads, and although the feeling was extremely weak, Guan Lang still caught it.

Guan Lang ran at a slightly slower pace than his usual long-distance running.

His planned run route is to run along a loop of sidewalks outside the campus, which is expected to finish at seven o'clock.

Buy breakfast, then go back to shower and class.

Perfect timing.

The silk-like internal force is constantly flowing slowly in the body, especially in the two thigh meridians, under the traction of the qi sense.

Guan Lang didn't feel any special effect on it at first.

The headphones he was wearing played brisk music, and Guan Lang ran silently.

It was only after running for three or four kilometers that Guan Lang vaguely realized the difference.

If he followed this pace, which was about five minutes and one kilometer, his body should be a little tired by this time.

After all, his physical fitness can only be regarded as an excellent level of human body, and it has not yet reached the level of continuous physical strength.

But now there are only a few drops of sweat on my forehead.

Both the physical state and the mental state are maintained quite well.

Guan Lang carefully felt his legs and abdomen, and about every few minutes, a warm current rushed by, recovering the exhaustion of his body.

Originally, Guan Lang was also worried that running long distances in such a short period of time would put a great burden on his body, especially the relatively fragile parts such as knees and ankles.

But now it's a reassuring pill.

Guan Lang, who had no worries, continued to run silently.

Circle after circle around the outside of the campus.

Guan Lang didn't know how many laps he had run.

I can't count them.

Time flies.

The sky also changed from a deep twilight to a sunny day in the passage of time.

The cars on the road also screamed.

......

Guan Lang propped his knees and half-squatted in place to rest.

"Whew, whew, whew. Guan Lang panted and adjusted his breathing.

All over his body and his clothes were completely soaked with sweat.

The muscles of his thighs trembled slightly, and the skin of his whole body was a faint layer of blood.

Guan Lang wiped the beads of sweat from his forehead, blinked his eyes, and secreted the beads of sweat that slipped into the corners of his eyes.

It took about two minutes of rest to feel a lot better.

When he first stopped, he felt like the whole world was speeding forward.

How many kilometers has this been run?

Guan Lang swallowed and thought.

Open the system task panel.

The mileage is displayed on the progress bar of the weekly mission.

Mission progress: 43.2km/500km

Did you really run a marathon?

Guan Lang was a little surprised, he didn't expect him to run so far.

The marathon covered a distance of 26 miles and 385 yards, or 42.195 kilometers.

To be honest, running 43.2 kilometers in three hours is not too fast.

In reality, the world record for the full marathon is 2 hours, 01 minutes and 39 seconds, which is a full hour faster than Guan Lang.

However, that was the result of professional athletes, and Guan Lang could only be regarded as a test run this morning.

After all, this is the first long-distance run in his life, and Guan Lang is still relatively cautious.

Except for the first lap, which uses a pace of 1 km in 3 and a half minutes to complete the daily task, the pace of 1 km in 5 minutes is roughly maintained for the rest of the time.

However, this is far from his limit, and he thinks that he should have no problem running at a pace of 4 minutes and 1 km.

Even faster, a pace of 1 km in 3 minutes may be possible.

However, in that case, it may cause a greater burden on the body, affecting the rest of the day, and excessive overdraft will also affect the next long-distance run.

Guan Lang summed up the experience in his mind, and finally felt that maintaining a pace of 3 and a half to 4 minutes per kilometer should be a more ideal range.

Standing up slowly, my body has stopped breathing, and the fatigue caused by exercise seems to have been relieved by half, and it should be another hour or two before I will fully recover.

The internal force in the body was not consumed too much, and there were still two-thirds left.

His only problem now is that he's too hungry.

Although he had eaten while running, he still felt hungry in his body.

Guan Lang found a breakfast shop that he usually frequented, and it was now seven o'clock, and the store had just opened.

Under the boss's astonished gaze, Guan Lang ate several large baskets of barbecued pork buns in one go.

Then after packing a breakfast for my little cousin, I walked home unhurriedly.