Suppose Chu Yan said: I need your help.

Tenten will not feel this way!

But when he said gently: You are the most important role!

This Tenten has no bottom in his heart!

Speaking of which, people are tired and become dogs, and when they sleep with sweat, they can still afford "the most important role!"

But Chu Yan has already said so, she still has to ask: "That...what is it for me!"

Chu Yan did not answer directly, but said: "In order to ensure the survival of nitrifying bacteria in large water bodies, some fish need to be stocked. The metabolism of fish can provide growth conditions for nitrifying bacteria, but you know, this small island can't find it. To freshwater fish!"

Tenten nodded: "Yes, it's hard to find fresh water, let alone freshwater fish!"

Chu Yan continued: "So in order for nitrifying bacteria to survive and work, substitutes must be used!"

"Alternatives?" Tenten was a little confused for a moment.

"Correct!"

Chu Yan patted Tenten on the shoulder: "Tenten, didn't you find it? You are the most suitable substitute!"

"when……"

Tenten felt a head-on blow, and his brain went blank!

"In other words, let me be...fish??"

"Either as a fish all the time, or occasionally swim in the water! The human body's natural metabolism will produce some peeling and body fluids, just enough to cultivate nitrifying bacteria! More or less, it will collapse the flora!"

Tenten twitched his eyes and shouted, "Chu Yan, it's really hard for you, how did you come up with such a hentai idea?"

"Is this idea very hentai? Okay, it's a bit, but there is no other way!

As long as there are twenty freshwater fishes, I won't let you do it! "

actually……

Chu Yan still has another way!

But there is the task of the system, and all the improvement of the ability depends on it. You have no reason to refuse!

Tenten shook his head: "Why don't you go by yourself?"

Chu Yan said, "I don't sweat as much as you!"

"Oh!" Tenten looked like he understood: "No wonder you let me do so much work, because you wanted me to do this!"

"Not all because of this. Boys are slightly acidic, while girls are weakly alkaline, which is very helpful for water purification!"

"Hey?" Tenten's eyes suddenly lit up!

You don’t always say that you don’t know that I am a boy or a girl, so why don’t I just do it?

So Tenten cleared his throat and said seriously: "Actually... I look like a girl, but I am actually a boy. You should look for a pure girl for this kind of thing!"

He pointed to three busy little girls not far away.

But Chu Yan said:

"I checked it all when you were asleep just now. Well, you are indeed a girl!"

"Eh?"

Tenten's face flushed suddenly, and then he shielded his body and broke down and shouted, "Chu Yan, you big hentai, you actually do this kind of thing, I'm never going to be nice to you again!"(Read more @ mtlarchive.com)

Chu Yan smiled and squeezed her face: "Look, if it's a boy, it won't react so strongly at all!"

"You... scam me?"

Chu Yan nodded: "Yes! So, bravely be what a girl should do!"

Tenten struggled a bit, but still couldn't accept this task!

Then find a reason to hide, anyway, you cheated me just now, I will cheat you again!

"Or not!"

"Why?"

"Then what, I... my aunt is here!"

"Don't be funny, I know your date, it's obviously been a few days!"

"I'm in a disorder, can I do it!"

Chu Yan lifted Tenten's shirt, leaned down and smelled it, "Obviously there is no smell!"

Tenten is messy!

What an operation!

Almost kicked Chu Yan, but Chu Yan avoided him!

"Chu Yan!!!"

"Um?"

"Can you stop bullying me!"

"It's very simple, you go down and swim two laps, or my job will be done for nothing!"

Tenten took a sip of water!

Frankly speaking, Tenten really wants to take a shower after doing so much work!

But which girl have you ever seen enter the water as a "cultivating nitrifying bacteria"?

That's too embarrassing!

But can't hold on...

It seems that the little value I have is wasted!

Forget it, trust Chu Yan again!

"Well, I really convinced you!"

With that said, Tenten took off his coat and stepped into the water!

The pool water is cool and very comfortable!

"Tenten, just swimming, don't pee into the water secretly, it will produce a lot of nitrite, nitrifying bacteria will not be able to bear it!"

Tenten clenched his small fist: "I won't do such boring things!"

After swimming a few laps, Tenten didn't want to come up!

Fresh water bath, so comfortable!

Chu Yan calculated the time: "Hey, hey, it's almost time, you can come up!"

Tenten came up now with a twist!

Tenten wiped his body. "Are you sure this method works?"

Chu Yan smiled, see the result tomorrow!

the next day!

Accept the filtering results?

The little Sakura Hinata Ino made a foot-lifting device. If you step on it with your foot, there will be a few bamboo water cups poured on the filter screen. As long as you use the cup under the filter screen, you can get relatively pure fresh water!

The girls are still quite happy, after all, the DIY installation has been quite successful since I went to the island!

It seems that Chu Yan's wind water tower is no better than us!

Come and have a look!

Several girls looked under the water, and they were stunned!

This water...

How can it become so clear?

Scoop out a tube, no trace of impurities can be seen!

It's comparable to pure water!

4.2   Chu Yan explained: "After purification by nitrifying bacteria, the purity of the water in the pool is no less than that of tap water that can be drunk directly!

But if you drink it, I recommend drinking the water here, which is rich in minerals and more nutritious! "

With that said, turn on the switch of the bamboo faucet in the water tower, and clear fresh water flows out of it!

Several girls were shocked!

Hinata was shocked: "This water... is too clear"

Ino took a sip and said, "You won't dig out underground spring water, it's so sweet!"

Little Sakura said, "Yesterday, I saw Tenten taking a bath in it. We wouldn't be drinking...!"

Chu Yan nodded: "You may not believe it! If you want to keep the water clean, you need a young girl to swim in the water every day!".

Read more @ mtlarchive.com. Chinese MTL Fan-Fiction/Second Element novel can be read @ HotMTLNovel for free.

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