I have countless cultivation hours

“Dad, Mom, I’m back!” Ye Han carried his schoolbag and walked into the store, saying hello to Ye’s father and mother who were busy, and hurriedly walked upstairs.

“Wait, Xiao Nuan may be late after school today, you wait for her to pick her up at the school gate!” Ye Mu stopped Ye Han and ordered.

“Oh, when to go?” Ye Han replied.

“You’ll be there at 7 p.m., and you can see the time yourself.” Ye Mu said without raising her head.

“Oh, I see.”

Ye Han nodded and continued to run upstairs.

Ye Xiaonuan is two years younger than him, and is now in her first year of high school at Ning’an Girls’ School, a pure girls’ school that only accepts girls, and inside, from teachers to security guards to cooks, all of them are women.

It is precisely because of this that the security near the girls’ school has always been not very good, because there are always some bastards who gather around the school gate every day to entangle the girls who come out there.

No way, girls in girls’ schools are too tempting.

What is even more tempting is that some open girls can’t find the opposite sex in school, and then, after leaving school, they can easily spend the night together.

Therefore, every day after school, the men around the entrance of the girls’ school are like male peacocks in heat, competing to show their “charm”.

These are all fine, and once it gets dark and then there are single girls walking at night, it is easy to get into trouble.

This is also the reason why Ye Mu asked Ye Han to pick up Ye Xiaonuan.

After Ye Han set an alarm clock at 6:40, he walked into the bathroom, first carefully cleaned the bathtub, then filled the bathtub with water, and finally, the whole person shrunk in.

He decided, right at home, to try to breathe underwater with his skin.

As for danger, it has the attribute of [Immortal Body] +10, if it is dangerous, then Ye Han also recognizes it.

After entering the water, Ye Han began to use the Great Perfection of “Thousand Opportunities to Change” to adjust his skin.

“People breathe, the main thing is to inhale oxygen, oxygen first into the lungs, and then through the lungs, into all parts of the body! Therefore, what I need to do is actually not as troublesome as I imagined, I only need to transfer oxygen into the lungs, and everything else can be done by the body itself. ”

After clearing his thoughts, Ye Han immediately began to try.

First, adjust the size of the pores, which is a good thing to do, because the volume of oxygen molecules itself is much larger than the volume of water molecules.

However, after the pores were adjusted, Ye Han found that he didn’t know where to start.

How do you get oxygen in through your pores? This is a problem.

Then, how does oxygen enter the lungs? This is another question.

Ye Han scratched his head and had to get out of the bathtub, then took out his mobile phone and began to look for problems with skin breathing.

“Huh, human skin can breathe itself?” Looking at the content searched on the Internet, Ye Han’s face was full of surprise.

At that moment, Ye Han couldn’t help but take a closer look.

“According to the above statement, the human skin itself can breathe, and the inhalation of oxygen, mainly relying on the stratum corneum of the skin, but the amount of oxygen absorbed by the stratum corneum is only equivalent to 1/160 of the breathing with the lungs, so the oxygen absorbed by breathing with the stratum corneum is far from enough to supply the needs of the human body…”

Seeing this, Ye Han couldn’t help but think: “Well, yes, if that’s the case, then I can achieve unlimited oxygen supply to skin breathing through two methods, one is to increase the amount of oxygen absorbed by the stratum corneum, and the other is to reduce its own consumption.” ”

“Of course, the best way is to increase the amount and efficiency of oxygen absorption by the stratum corneum!”

Thinking of this, Ye Han silently experimented at the moment.

For the average person, it will be very troublesome or even basically impossible to change the composition of the stratum corneum and increase the amount of oxygen uptake in the stratum corneum.

But for Ye Han, who has a great consummation of “A Thousand Chances”, it is a very easy thing, and the only trouble is that it takes a lot of time to conduct a lot of experiments.

In this way, time passed little by little, Ye Han’s transformation of the stratum corneum became more and more handy, and the oxygen uptake of the stratum corneum was also improved little by little.

However, just as this transformation was getting better, the alarm clock of the mobile phone suddenly rang.

“It’s 6:40? Let’s go pick up the girl first…”

Ye Han floated up from the bathtub with a flat face, he had been mentally prepared for the transformation to be interrupted, after all, this transformation is not a matter that can be completed in a short time.

……