With three superpowers at his fingertips, he could dominate the 1970s.

After the semiconductor lab was emptied, Jiang Zhiyu took stock of the remaining inventory and felt much more at ease.

She'd taken everything she could get: equipment from the machine tool factory, weapons and data from the military lab, electronic products from the shopping mall, and the entire production line from the semiconductor lab—enough to sustain the domestic market for a while. If it were a small, independent lab, she could have taken more, since they were indeed skilled in precision manufacturing. But with the core components from the US, anything more would just be icing on the cake; there was no need to be greedy.

In the days that followed, Jiang Zhiyu settled down and spent time with her maternal grandparents.

During the day, she would stroll around San Francisco with them, have dim sum in Chinatown, visit Fisherman's Wharf, and take a walk on the Golden Gate Bridge. Su Lixing and He Li both worked during the day, her older cousin helped out at his company, and her cousin's wife was on duty at the hospital, leaving only her and her two elderly relatives at home. The three of them lived a leisurely and fulfilling life.

Jiang Zhiyu would accompany the old man out during the day, and then secretly enter her spatial dimension at night to retrieve the spiritual spring water.

My maternal grandmother came from a family of traditional Chinese medicine practitioners, and her perception of her body was far more acute than most. However, her concern often clouded her judgment, and she never took her own ailments seriously. Jiang Zhiyu used her spiritual power to carefully examine the two elderly people's health and discovered that my maternal grandfather's problem was more serious—my maternal grandmother said that over the years, because of worrying about her mother and her, the old man had been burdened with excessive worry, suffering from insomnia, which had severely depleted his health, causing a decline in his liver and kidney functions, and resulting in a deficiency of both qi and blood. Although my maternal grandmother was in slightly better condition than my maternal grandfather, she too had been overworked for many years, resulting in a weak spleen and stomach, and insufficient qi and blood.

Jiang Zhiyu felt a pang of sadness.

She couldn't openly give her grandparents the spiritual spring water; that would be too unusual and hard to explain. But she could tamper with their daily diet—she would secretly add a few drops of spiritual spring water to the teapot her grandmother brewed every morning; she would also secretly add a little to the soup her grandfather drank in the evening before serving it; and she even secretly added some diluted spiritual spring water to the porridge that Zhang Ma cooked.

The effects aren't quick, but they are gentle and long-lasting.

A few days later, Jiang Zhiyu went out for a "stroll" and when she returned, she took out two excellent-quality century-old ginseng roots from her space. She examined them in her hands for a while before going downstairs to the living room.

"Grandma, look what this is?" Jiang Zhiyu placed the ginseng on the coffee table.

Shen Peiyu was flipping through an old pharmacopoeia when she heard this. She looked up and instantly jumped up from the sofa, almost knocking her reading glasses off.

"This...this is..." Her hands trembled as she picked up one of the ginseng roots, brought it close to her eyes for close examination, then smelled it. Her expression shifted from shock to ecstatic joy. "A hundred-year-old wild ginseng! From Changbai Mountain! Yuyu, where did you get this?!"

"I got it by chance while I was out the other day," Jiang Zhiyu said casually. "I don't know much about these things, but I thought you, Grandma, would definitely recognize its value, so I brought it back for you to see."

Shen Peiyu had no time to inquire about its origin. She examined the two ginseng roots over and over, her eyes reddening. Coming from a family of traditional Chinese medicine practitioners, she had handled countless fine medicinal herbs in her life, but this was the first time she had ever seen such top-grade, century-old wild ginseng—its roots were intact, its rhizome plump, its veins fine and dense, and its aroma alone told her it was a rare and precious find.

"This is wonderful, truly wonderful!" Shen Peiyu stroked the ginseng with delight, then suddenly remembered something and immediately turned and ran to the study. "I still have that ancient prescription book. I remember there's a ginseng and deer antler medicinal diet recipe, specifically for replenishing vital energy deficiency. It'll be perfect for your grandfather!"

She spent most of the day there, turning over and over the yellowed ancient prescriptions she had brought from China in the study. In the end, she chose a family-inherited ginseng and angelica qi-tonifying prescription, added more than a dozen auxiliary ingredients, and dragged the bewildered Zhang Ma into the kitchen to personally stew it over the stove.

Jiang Zhiyu sat down beside him with a cup of tea, watching the scene unfold, secretly amused.

Grandma's seriousness was exactly the same as when she was researching the weaknesses of zombies in the apocalypse.

While Grandma turned to rummage through the medicinal herbs, she discreetly placed a few drops of spiritual spring water on the edge of the clay pot, precisely dropping them into the boiling medicinal soup without leaving a trace.

She's become quite adept at this trick over the past few days.

Every evening thereafter, Shen Peiyu would stay in the kitchen to cook medicinal meals for her husband. Jiang Zhiyu followed suit, claiming to be interested in her grandmother's ancient recipes, but in reality, she would secretly add a little bit of spiritual spring water to the medicinal meals whenever her grandmother wasn't looking. The spiritual spring water itself was colorless and tasteless, and the amount added was so small that it was impossible to taste in the rich medicinal meals.

After half a month, the results were visible to the naked eye.

Grandpa Su Jinglun's originally ashen complexion gradually regained its rosy hue, and he no longer got out of breath after just a few steps. His spirits improved considerably, and he could even practice a set of Tai Chi in the yard every morning. Grandma Shen Peiyu was the same; the wrinkles on her face seemed to have faded, her voice was strong, and she was no longer the person who would cry at the drop of a hat as before.

"Yuyu, isn't it strange?" Shen Peiyu held her hand, her face full of confusion. "The medicinal food I made for your grandfather shouldn't have been effective so quickly, but look at him, his complexion is better than it was a few years ago! Could it be that my ancient remedy is more effective than I thought?"

Jiang Zhiyu nodded with a smile: "It must be because Grandma's medical skills are superb, and the ancient prescription is the right one."

Shen Peiyu beamed with joy at the praise and confidently went to look through her pharmacopoeia, thinking about how to prepare another prescription to help her husband consolidate his health.

Jiang Zhiyu watched her busy figure, feeling a warm glow in her heart. Being able to help her grandparents, even if it was just secretly like this, made her happy.

---

While helping her grandparents with their health care, Jiang Zhiyu was also busy.

The large quantity of ordinary supplies she had previously purchased—food, seeds, daily necessities, and samples of ordinary machinery and appliances—were all stored in a rented warehouse outside San Francisco. These items were shipped to Hong Kong through her uncle Su Lixing's trading company via legitimate channels, and would be transshipped from Hong Kong after she returned to China.

Su Lixing was incredibly accommodating to his niece, arranging the fastest shipping route, offering the best price, and even handling all the customs clearance procedures for her. Jiang Zhiyu cherished this kindness and vowed to repay her uncle in the future.

After arranging the supplies, Jiang Zhiyu made a special trip to Chinatown.

She had been in the US for so long without contacting China, not because she didn't want to, but because she was afraid. Communication methods were too outdated; making a call anywhere was unsafe and easily monitored. She pondered for several days before finally deciding to go to Chinatown—a place teeming with all sorts of people, and phone booths everywhere, making a call there less likely to be tracked.

Jiang Zhiyu chose a secluded public phone booth and dialed Commander Li's private line.

The phone rang a few times before being answered. A deep, alert voice came from the other end: "Who is it?"

"It's me, Jiang Zhiyu."

There was a moment of silence on the other end of the phone, followed by Commander Li's voice, clearly relieved: "Xiao Jiang! You finally got in touch! We were all worried something had happened to you since you left so long without any news!"

"It's alright, everything went smoothly." Jiang Zhiyu went straight to the point, "What about Song Yanzhou and the others? Did they return home safely?"

"They're back, all of them are back safely," Commander Li said with relief. "Not a single one is missing, even the four scientists arrived safely. Xiao Jiang, you've done a great job this time!"

Jiang Zhiyu breathed a long sigh of relief; the weight that had been pressing on her heart for more than half a month had finally been lifted.

It's good that Song Yanzhou and the others are safe.

"There's one more thing," Jiang Zhiyu continued, "I purchased a batch of urgently needed food and seeds in the US, and it's already been shipped to the port city through trade channels. It should arrive in about ten days. I plan to donate these supplies to the military region."

There was a long silence on the other end of the phone.

When he spoke again, Commander Li's voice trembled slightly: "Little Jiang... how much did you buy?"

"There are about thirty tons of grain, various kinds of seeds, and a batch of daily necessities and general medical supplies." Jiang Zhiyu paused, then added, "As for some more important things, I'll tell you about them in person when I get back."

Commander Li remained silent for a long time on the other end of the phone; Jiang Zhiyu could even hear his heavy breathing.

"Xiao Jiang," he finally spoke, his voice hoarse, "do you know what the situation is like back home right now? Food is scarce. Even with ration coupons, it can't solve the basic needs of most people. The soldiers on the border often only get two meals of thin gruel a day. Your batch of grain may not be much, but for the soldiers on the border..."

He couldn't continue after saying that.

Jiang Zhiyu held the microphone, remained silent for a moment, then said calmly but firmly, "Commander Li, this grain is meant for our own people; it's not a matter of donation. When I get back, I have something more important to give to the country."

"Alright," Commander Li took a deep breath, his voice filled with suppressed excitement, "Xiao Jiang, on behalf of the soldiers on the frontier, thank you. Be careful over there, and come back soon."

"Yes, I will return to China as soon as possible."

After hanging up the phone, Jiang Zhiyu stood in the phone booth for a while in a daze before slowly walking out.

The Chinatown was bustling with people and filled with noise, but she found it unusually quiet.

I've done what I needed to do, taken what I needed to take, and it's time to go home.

She misses her parents.

---