As for the side effect of causing plants to absorb external nutrients without limit and thus lead to death, Tang Han can only rely on himself to study how to overcome it.

"How much is one?"

"Well..." Airihazuko pinched her chin and looked up at the ceiling.

"Originally, I wanted to price this plant growth agent at 100,000 yuan per tube, but considering that you are the last customer and this is a semi-finished product, I will give you a discount..."

Elly Speedy stretched out her hand from her long sleeves and made a five sign.

"Fifty thousand?" Tang Han asked uncertainly.

Elissa shook her head and said:

"Five thousand."

"Oh, five thousand...wait? How much?" After Tang Han realized what was going on, he widened his eyes in disbelief.

Original price: 100,000 to 5,000? Twenty times cheaper?!

How can a discount be so severe?! This must have broken my spine!

Tang Han had never seen such a scene before, so much so that he once thought that Ali Suzi was joking.

However, when Tang Hanhan calmed down and thought about it carefully, he found that there was a reason why Aili Suzi sold the potion at such a low price...

After all, the value gap between semi-finished products and finished products cannot be judged simply by "half".

For example, one hundred grams of iron and plastic is not expensive, only a few cents.

But if it is made into a circuit board, the price will soar to hundreds of dollars. If it is equipped with excellent programs, it will become a mobile phone worth thousands of dollars.

The more knowledge something requires, the greater the gap between its raw materials, semi-finished products and finished products.

So it is actually quite reasonable that the semi-finished product of the herbal medicine with an original price of 100,000 is only sold for 5,000.

This isn't a loss for Ai Lisuzi, and it's also much friendlier to Tang Han's wallet...

"Okay, if it's 5,000 per dose, then..."

Based on the funds he held, Tang Han carefully calculated in his mind more than ten times and worked out the appropriate purchase quantity.

Then, he took out all the money from his pocket with a painful gesture and placed it on the counter.

"Give me one hundred [Plant Growth Agents]... and... one [Energy Agent 2.0]!"

Tang Han felt that one hundred semi-finished plant medicines were enough, and it would take a month to conduct experiments. If he couldn't figure it out in this month, he could just buy the improved finished products from Aili Suzi.

As for the remaining money, Tang Han did not plan to keep it, but instead set his sights on the [Energy Potency 2.0] that all customers would buy.

It would be a lie for Tang Han to say that he was not curious about this potion that could give people unlimited energy for three days and three nights. If one ignores the side effect of being drowsy for three days and three nights after the effect, it could play an important role whether one has urgent matters to work on or encounters danger and needs to escape overnight.

So Tang Han bought a bottle as a backup.

"One hundred [Plant Growth Agents], one [Energy Agent 2.0], a total of one million yen, hmm..."

Alisako picked up the money on the counter and counted it. She found that although the stack of money was very messy with banknotes of various denominations, the total amount was neither more nor less than one million.

"Hold on."

Ai Lisuzi put the money away, first took out a bottle of [Energy Potency 2.0] for Tang Han, then bent down and took out a few cardboard boxes from under the counter.

Then, she carried the cartons to the group of "do not touch" medicines, and took out one light green medicine after another and put them into the cartons, just like buying goods at a vegetable market.

Two minutes later, Elissa placed three full boxes of potions on the counter.

"There are a total of one hundred here. Do you want to count them?" asked Alisuko.

"No need." Tang Han shook his head.

When Ai Lisuzi was packing the boxes, Tang Han was watching and there were indeed 100 of them.

Although Aili Suozi runs an illegal black market, it operates with integrity. As long as the payment is in place, it will never shortchange customers.

Since the target potion has been obtained, there is no point for Tang Han to stay here any longer.

Tang Han put the most expensive energy potion into his pocket, then picked up the three cartons filled with plant growth agents and left the laboratory hurriedly but carefully.

After watching Tang Han's figure disappear from her sight and confirming that the intention glasses did not detect anyone nearby, Ai Lisuzi breathed a sigh of relief.

"Huh... finally gone..."

Alisuko looked at the dark corridor at the door and felt a little scared.

In fact, she had been wary of Tang Han just now.

After all, Tang Han had harbored ill will towards her at the beginning, so she had to be on guard.

Although Tang Han's malice disappeared later and he/she behaved very well afterwards, Airi Suko never let down her guard against him/her.

She wasn't afraid of fighting, but she was afraid of breaking the potions in the lab during a fight...

That is an extremely dangerous situation. Multiple strange potions are mixed together. If you are not careful, Tresen College may disappear from the earth in an instant!

Fortunately, the man in black didn't seem to have any intention of fighting with her, which avoided unnecessary conflict.

In fact, Airi Suzuko initially suspected that the man in black was not a horse girl, but a trainer who secretly came to report her for running an illegal black market.

But seeing that she/he bought a bottle of energy potion, and those Asian trainers in the academy who were bullied by horse girls basically wouldn't buy this thing, so Airi Suzuko felt that it was more likely that the man in black was a horse girl.

"Ahh..." The relaxed Alice yawned, her ears and tail drooping weakly.

Because of the men in black, today's black market lasted longer than any other time, and before we knew it, it was already three in the morning.

Alice rubbed her tired eyes. Even though she often stayed up late to do experiments, she felt a little exhausted and wanted to pack up and go back to sleep.

But not long after Tang Han left, a petite pony girl wearing a blue rose hat on her hair, light blue pajamas inside, and a coat several sizes larger than her body outside slowly poked her head out from the door and looked into the laboratory fearfully.

Glowing walls, white skulls, colorful strange potions...

"!" The horrific scene in the laboratory frightened the horse girl, and she couldn't help but scream.

And this sound instantly attracted the attention of Elissa in the laboratory.

"Hmm? Are there any customers?"

The sleepy Ali Hayako perked up and observed the horse girl with her intention glasses.

White triangle, no harm done...

For Alice, as long as the customers have no ill will towards her, no matter what their purpose is, Alice will never refuse to do business with them. Even if she is about to close now, she can extend the business hours a little.

After all, what if the things you sell happen to help that horse girl?

"Welcome, is there anything you would like?" Ali Suko waved to Mi Yu at the door and greeted him with a smile.

157.Soundly asleep?

After Tang Han obtained the fifty plant growth agents and safely put them all into his four-dimensional pocket, he did not stay in Tresen College for even half a second. He rode his bicycle parked at the school gate and rushed back to the boys' dormitory before dawn.

It was already four o'clock in the morning when we arrived.

He quietly parked his bicycle in the shed, tiptoed to the door of his room, calmed his breathing a little, prepared himself mentally, and took out the room key from his pocket.

As Tang Han opened the door with the key, a crisp sound like a chain breaking echoed throughout the room.

"Click——"

Because the top management of Tresen Academy wanted to warn the trainers in the room that a horse girl might have sneaked into the room, the door of the boys' dormitory was specially designed with a function:

If you open the door from the room, no sound will be made. However, if someone opens the door from the outside with a key, the iron door specially designed to prevent the folding fan from hitting the horse girl will make a short sound. Although the sound is not loud, it is enough to wake up the people in the room from their sleep, thereby reminding them that someone has come in.

This sound is also set to be a sound similar to the breaking of iron bars, which symbolizes escaping from bondage and yearning for freedom.

As soon as the trainer in the room hears this meaningful sound, he will know that an unidentified person has broken into the room, and he can quickly run to the window and wait. If he sees that the person coming in from the door is really a horse girl who wants to pick on him, he can immediately jump out of the window and escape, so that he will not fall asleep in the room and appear in his beloved horse's basement for no apparent reason the next day.

Although Tang Han used to think that this alarm function was a genius design, it could effectively prevent the situation where a horse girl invaded in the middle of the night without his knowledge.

but now......

Tang Han would rather not have this function!

After all, Tang Han was the one who came in from outside, and in the room was a certain scary horse girl who was sleeping in bed and couldn't be woken up...

Rudolph symbol!

"Click--" The alarm sounded particularly harsh in the quiet environment, as if someone was scratching a blackboard with fingernails. It made Tang Han's teeth ache. He hugged himself with both hands and shivered uncontrollably all over.

Tang Han covered his forehead in fear and looked towards the bed tremblingly. In his mind, he had already imagined the awakened Rudolph symbol sitting on the bed, staring at him with a half-smile as he came back from "fooling around" outside in the middle of the night.

"Huh?" But to Tang Han's surprise, the Rudolph symbol on the bed didn't seem to be woken up by the sound.

She was still lying quietly on her side in the quilt, which rose and fell with her steady breathing. Even her posture was the same as before Tang Han left the room, with no changes, except that her ponytail was shaking slightly.

But just because a ponygirl's tail shakes or her ears wiggle while she sleeps doesn't mean she's awake. Just like any other limb, she might be moving unconsciously while dreaming.

This resulted in Tang Han being unable to judge whether Ma Niang was truly asleep based on her ponytail and ears. This was also the case when Tang Han was acting as a human heater in the East China Sea Emperor's dormitory, not realizing that the East China Sea Emperor was actually pretending to be asleep...

However, based on Tang Han's understanding of Rudolph's symbolism, she has a relatively stable character, is extremely intelligent, honest and trustworthy, and is strict with herself, so there should be no need for her to be like the Emperor of the East China Sea...

Pretend to sleep...

"......" Tang Han was still not reassured, so he walked around to the front of Rudolph's symbol and observed it carefully.

Breathing is steady, expression is relaxed, sleeping position is normal......

There is a ninety-five percent chance that it is true!

Rudolph must have been sleeping so soundly that he didn't hear the alarm.

"Huh..." Tang Han breathed a sigh of relief.

Very good, as long as he hadn't been discovered by Rudolph, it was like he hadn't sneaked out in the middle of the night! He didn't need to spend more energy to find a reason to explain it.

Tang Han put his cell phone on the bedside table, quietly lay down on the bed, covered himself with the quilt, turned sideways, faced the Rudolph symbol, and finally stretched out his hand and continued to hold her hands in his palms.

After confirming that his posture was the same as before and that the other party could not find any flaws no matter how hard they looked, Tang Han closed his tired eyes and fell into a deep sleep.

The room fell silent again.

However, Tang Han didn't notice that although Rudolph's symbol appeared normal on the surface, the toes hidden under the quilt had been clenching unnaturally since he entered the room...

......

The next day, Tang Han's cell phone alarm rang at seven o'clock as usual.

"......" However, Tang Han, who had been tired all night, only vaguely heard the alarm ring a few times. Before he could react, the alarm on his mobile phone was deliberately turned off.

So the tired Tang Han fell asleep again, and his brain automatically forgot this short meaningless memory.

It was not until half an hour later that Rudolph's symbol called softly in his ear that Tang Han trembled all over and woke up.

"Han, it's time to get up."

Tang Han opened his eyes and saw Rudolph in front of him wearing an apron and looking at him with a smile. There were two steaming omelet rices on the kitchen table, and a faint fragrance wafted into his nose. It seemed that she called him after making breakfast.

"Eh? Why are you calling me, Luna? Where is the alarm I set?" Tang Han blinked in confusion.

Tang Han picked up the phone on the bedside table and found that his alarm had already rung, but why didn't he hear it?!

Yes... I only slept for three hours... am I still too tired...

"Sure enough, if you sleep too soundly, you may ignore the surrounding sounds." Tang Han said to himself, and became more convinced of his inference that Rudolph Symbol was not woken up last night.

158. Flower Garden

"Uh~."

Tang Han endured the aches and fatigue in his body, and in front of the Rudolph symbol, he pretended to stretch comfortably, as if he had slept enough last night, and slowly sat up from the bed.

Even though all the bones in his body were making mournful cries and his chest was aching, he had to pretend that nothing had happened and said symbolically good morning to Rudolf.

"Good morning, Luna."

"Good morning...um..."

But Tang Han's abnormality was soon discovered by Rudolph Symbol.

"You seem very tired. Did you not sleep well last night?"

"Oh... I had a nightmare last night..." Tang Han scratched his face guiltily.

"Oh? Nightmare?" Rudolph tilted his head and narrowed his eyes.

"You held my hand all night...and then you had a nightmare?"

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