The music was still playing; it was an old song, slow and without much variation. Chen Hao leaned back in his chair, his eyes closed, his shoulders twitching as if shaking off the soreness left from last night's workout.

He wasn't asleep, but he didn't want to move either.

“It’s time to stretch.” Nana stood beside her, her voice unhurried. “You brought it up yourself yesterday.”

“I know I made that suggestion.” Chen Hao opened his eyes and rubbed his lower back. “But now I think I made the wrong suggestion.”

"The suggestion has been entered into the system process and cannot be revoked."

"Are your robots really this inflexible?"

"I was just following the established procedure."

Chen Hao sighed and stood up, using the chair for support. His legs were still a little weak, but he didn't fall again or lean against the wall; he just walked like a penguin that had just learned to walk upright.

Nana laid out the anti-slip mat, the projector lit up, and the action breakdown diagram popped up frame by frame.

“Start with your shoulders and neck,” she said. “Place your hands behind your head and slowly lean forward.”

Chen Hao did as he was told, but as soon as he bent his neck, he hissed, "Isn't this revenge? I fell three times yesterday, and today you're making me suffer?"

"This is to prevent secondary injury."

"That sounds even scarier."

He slowly finished a set of stretches, a thin layer of sweat appearing on his forehead. There was a faint smell of burnt fabric in the air, wafting from the heater; he was used to it.

After finishing the last action, Nana turned off the projector and turned to walk towards the main control panel.

"Next is the inventory."

"What?"

“Resource inventory.” She swiped her finger across the panel, and a list popped up on the wall. “Energy, food, water, medical care, tools. Five items. Inventory all.”

Chen Hao stared at the watch for three seconds, then looked up at the ceiling: "Can't you let me rest for a bit? I just completed an important step in human evolution—from lying down to standing up."

“You stood there for less than two minutes.”

"This is my limit."

"Then please sit down."

"I get tired even sitting down."

"Can we have someone else?" Nana turned her head. "Not at the moment."

Chen Hao rolled his eyes: "I knew it."

The list begins to scroll. The first item is energy.

Nana pulled up the data stream, which showed that the fuel reserves were sufficient for 62 days, the heating system was operating stably, and the backup generator could support lighting and water purification for 72 hours.

"Enough," Chen Hao nodded. "It won't freeze into an ice pop for now."

The second item is food. There are 347 canned goods in stock, 126 bags of compressed dry rations remaining, and the vegetable growing compartment is producing normally, yielding 600 grams of leafy greens per day.

“It can last for three months,” he said. “Even if I don’t hunt, I won’t starve.”

The third item is water. The purification system has a circulation efficiency of 91%, the water storage tank is full, and the emergency water source is sealed and intact.

"We don't have to worry about drinking either."

As the list continued, a red light flashed when the fourth item appeared.

[Medical Supplies: Trauma Treatment - 17% Remaining]

Chen Hao narrowed his eyes: "This number is wrong, isn't it? We've only been here a short time, how come we're almost out?"

Nana pulled up the records: "In the past ninety days, I have had four cuts, two sprains, and one burn. On average, each incident used one bandage, three antiseptic wipes, and five adhesive bandages."

"Wait a minute." Chen Hao suddenly remembered something. "Last time when the pipes were being repaired, I scraped my hand, and you put five band-aids on it for me?"

“If the wound is more than three centimeters long, it needs to be covered with multiple layers of cloth to prevent infection, according to the standard.”

"I only brushed against it!"

"Bacteria do not distinguish between large and small."

Chen Hao opened his mouth, but in the end he could only manage to utter, "You robots are really something."

He looked down at the 17%, his brows furrowing deeper and deeper.

"If you slip and fall or cut your hand while going out in winter, this little bit of stuff won't last more than a few days."

"correct."

"Can't we use it sparingly?"

"Saving the province is not a solution. The probability of risk increases with the frequency of activities, and working outdoors during the cold winter is unavoidable."

Chen Hao was silent for a few seconds, then suddenly looked up: "Can we do it ourselves?"

"do what?"

"A medical kit!" he exclaimed, slapping his thigh. "No alcohol? We have high-proof liquor. No gauze? We have clean cloth. No packaging bags? We have sealed boxes. Let's put together something; it's better than nothing."

Nana stared at him for two seconds.

"The feasibility assessment for this plan is underway..."

She swiped her finger quickly, and the screen switched to an electronic manual titled "Guide to Emergency Medical Preparation in the Wilderness".

“The analysis of available materials will complete the task,” she said. “The base currently has one bottle of pure grain liquor (65% alcohol content), a working distillation equipment, three sets of old uniforms (cotton, not moldy), and several scissors, needles and thread, and sealed bags.”

"Let's do it then." Chen Hao rolled up his sleeves. "Anyway, I'm free right now."

"You just said you were very tired."

"Compared to getting injured and having no one to care for me in the future, being a little tired now is nothing."

Nana didn't argue further and started the operation process.

The first step is to prepare the disinfectant solution.

She poured the liquor into a distillation flask, added a measured amount of distilled water, heated it to separate impurities, and finally extracted about 500 milliliters of liquid with a concentration of 75%.

"It cannot achieve 100% sterilization, but it can meet basic disinfection needs," she said.

Chen Hao squatted down beside him, took a sniff, and said, "Hmm, it smells like cheap hot pot broth."

"This is due to the volatilization of the active ingredient."

"You explained it quite professionally."

The second step is to apply a bandage.

He pulled out an old training uniform, cut open the sleeves, and cut strips along the grain. At first, the cuts were crooked, uneven in width, and some parts even had frayed edges.

"Will this work?" he asked, holding up a piece of paper.

Nana glanced at it: "The width error exceeds the standard value by 38%, which can easily cause uneven compression."

"I'm not a tailor!"

"Recut."

Chen Hao muttered to himself as he started over. The second attempt was slightly neater, and the third one finally barely met the standard.

"The pass rate is 42%," Nana said. "Continue."

They boiled the strips of cloth in boiling water for ten minutes, then took them out and hung them to dry on a metal rack. The room was steaming hot and smelled of damp cloth.

The final step is packaging.

Nana took out ten sealed bags, each containing two pieces of disinfectant cotton, a small bottle of disinfectant, three bandages, and five homemade adhesive bandages (made by sticking cotton with tape).

“Put on a label,” Chen Hao said. “Write the date and contents clearly.”

She connected the printer, affixed the labels, and neatly stacked the items into the emergency cabinet.

Ten packs, neatly arranged.

Chen Hao looked at the row of small bags and suddenly smiled: "Do you think I'll be so moved that I'll cry when I see the medical kit I made myself if I get injured in the future?"

"Your tears do not have antibacterial properties."

"Can't you just cooperate a little?"

"I'm just stating the facts."

"Okay." He reached in and put the last bag inside, then closed the cabinet door. "At least now I don't have to worry about cutting my hand."

Nana closed the system interface and said softly, "Basic protection has been completed. I suggest setting off for the hunt at 6:30 a.m. tomorrow to avoid the midday snowstorm peak."

Chen Hao sat down in a chair and rubbed his shoulders: "Now there's really nothing to panic about."

The wind was still blowing outside, and fine snow was seeping in through the window cracks, melting into tiny water droplets on the floor. The radiator was blowing warm air at a steady pace.

He closed his eyes, and his breathing gradually calmed down.

Nana enters low-power mode, the body light gradually dims, leaving only a small blue light flashing in the corner of her eye.

The two sat quietly, one almost falling asleep, the other about to shut down her phone.

On the control panel, the last item on the list was checked.

All projects are now complete.

Chen Hao suddenly opened his eyes and looked at the backpack in the corner.

He remembered there was also half a bag of carrots inside.