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

Jiang Zhiyu took a stroll outside and felt completely refreshed. These past two days, she'd been confined to the house drinking tonics every day, and she felt like she was covered in herbs, especially the ones her grandmother brewed—each one more bitter than the last.

As she thought about it, she shuddered again. "Then let those two old men drink slowly."

She went into a state-run restaurant and ordered two very spicy and flavorful dishes. She ate until she was sweating, and only then did she feel satisfied. She glanced at the time; it was almost time to go back.

As soon as he entered, he was met with Su Wanqing's resentful gaze.

"Mom, I'm really all better. Look at my arm, there's just a thin layer of scab left. Don't you know what methods I used? Give the remaining medicine and stewed chicken to those two old men."

"Alright, I got it. Go on in." Su Wanqing stepped aside. "They seem to have something to discuss with you; they haven't left yet."

Jiang Zhiyu slapped her forehead. Right, the Zhenmai Nail in the space hasn't been dealt with yet.

......

Once inside, the two old men were eating with rosy cheeks.

"How was it? My mom's medicinal cuisine was delicious, wasn't it? I've been eating it for three days straight."

Zhuge Yunhe nodded: "I'm just lucky to have you here, it really is delicious."

Xu Yunzi put down his bowl and looked at Jiang Zhiyu again: "Girl, let's discuss how to deal with this Zhenmai Nail. We two old men respect your ideas, young people."

"What I mean is, let's give them a taste of their own medicine!" Jiang Zhiyu sat down in a chair, crossed her legs, and said, "What kind of nonsense is it that they left their stuff on our territory? Of course, it has to be returned to their country to be considered legitimate."

Zhuge Yunhe and Xu Yunzi exchanged a glance. Sure enough, they knew this girl was vengeful and wouldn't let those people get away with it.

"Alright, since you want to return these things." Zhuge Yunhe opened his luggage bag, spread the documents that Yan Nantian had given him on the table, and looked them over carefully.

"These Pulse-Suppressing Nails are new ones created by the Koizumi and Sato families after they took over the Bureau of Yin and Yang; they are even more insidious than the original ones."

He pointed to the contents of the document with his finger: "According to the information Yan Nantian found, these several aristocratic families jointly established a sect, which serves the five major families. Since the last disintegration of the Yin-Yang Bureau, they have jointly established this system. Ostensibly, it is an ordinary folklore research institute, studying ancient calendars, site selection for ancient buildings, and the like."

He turned to the next page: "Secretly, they only serve the top aristocratic families, mainly selecting ancestral gravesites and house sites for them, and analyzing landforms. They have also been collecting geomantic maps and handwritten secret texts in my country, secretly developing methods like 'matrix-suppressing nails'—artificial means of destroying rock strata. They adhere to indigenous deities while distorting the geomantic theories they learned from China."

Zhuge Yunhe handed a document to Jiang Zhiyu: "Yan Nantian has investigated everything for you, from the public addresses to the clandestine outposts."

Jiang Zhiyu took the documents and flipped through them, then turned to Xu Yunzi and asked, "How do you use this thing? Do you just nail it in, or is there some other method?"

Master Xuyun put down his teacup and said seriously, "There are many intricacies involved here."

He picked up a pulse-suppressing nail from the table, his finger slowly tracing the runes on it: "Look at these runes, they weren't just randomly carved; each one has a specific order. Then, find the location of the acupoint and insert the nail at the thinnest point of the pulse wall."

He gestured to indicate the angle: "When you nail it in, you have to go in at an angle, following the direction of the veins. You can't force it. If you force it, the nail will be bounced out by the earth's energy, and it'll be a waste. When you nail it in, make sure the rune and the earth's energy mesh together, so that the resentment will seep into the veins little by little."

Jiang Zhiyu listened attentively, nodding from time to time.

Jiang Zhiyu checked a few more details to make sure nothing was missed, then stood up: "Alright, you two can rest now. I'm going out for a walk."

Xu Yunzi was still a little worried and reminded him again, "Be careful of their ninjas. Don't be careless again. Your hand injury hasn't healed yet."

Seeing the wound on her hand, Jiang Zhiyu's teeth itched again. Damn it, just returning these things was too frustrating. They always come to cause trouble; if she didn't make a big commotion this time, it would be a disservice to her ten-centimeter wound.

......

Jiang Zhiyu was caught red-handed by Su Wanqing as soon as she stepped out.

"You're back just in time, so I made another pot of ginseng and black chicken soup. It smells so good! Your grandma and grandpa each had a big bowl, and there's still half a pot left. I brought it over to the three of you."

Jiang Zhiyu quickly waved her hand: "I just finished eating outside, I really can't eat anymore."

Su Wanqing immediately objected: "So you think my cooking is bad, and you went out to eat it?"

"No, no, Mom, I really didn't steal any food. Look, these two old men just gave me some tasks. I'll be back in a bit. You can have this half pot; they're getting old and need to nourish themselves. Your daughter is lively and energetic, what's the point of nourishing myself? I'd get a nosebleed right away!"

"I didn't give you the ginseng to use like this..."

She then slipped away.

......

Jiang Zhiyu walked along the road and thought for a moment, deciding to go see Elder Gao and Elder Li first. It would be terrible if her subordinates acted recklessly and caused trouble for the country.

When I arrived at the office, both Mr. Gao and Mr. Li were there.

Upon seeing her, the two elderly people's eyes lit up. Old Gao got up and walked over to Jiang Zhiyu, took her left hand, and felt a pang of pain in his heart when he saw the ten-centimeter-long scar.

Old Gao pulled her to sit down on a chair. The two elderly men, each holding a teacup, scrutinized her.

"With your skills, how could that be?"

Jiang Zhiyu coughed lightly: "Yes, I was careless. After using the poison, I thought that no one could cure it, so I wasn't on guard when I went in. I didn't expect the cave to be so big, and those people's hiding places to be so cunning; they avoided the poison. That's why I was slightly injured after the attack."

She moved her arm slightly: "It's really nothing, my wound medicine works very well."

Seeing that she was really alright, the two old men were relieved and sat down opposite her.

"So what brings you here this time? If not, stay home and recover from your injury. Don't wander around."

Jiang Zhiyu stretched out her arm to look at her wound: "Look, do you two think this wound needs to heal? My mom has been forcing me to drink chicken soup and all sorts of herbal remedies for days. If I don't get out here soon, I'll be pickled up and seasoned."

As she spoke, she took out a pulse-suppressing nail from her pocket and unwrapped the layers of white cloth.

It was wrapped in silver paper. After unwrapping it layer by layer, it was the first time that Elder Gao and Elder Li had ever seen this thing. Even before getting close, they could feel a chilling aura, and the runes drawn on it seemed to be moving like snakes.

"Is this some kind of mystical technique?" Old Li murmured, staring at the nail. "They actually used it on our own soil."

"There are many of these. Let me show you a sample first." Jiang Zhiyu placed the nails on the table. "I plan to return these things to their rightful owners. But I just can't swallow this anger; it's too frustrating. So I want to do something big, but I'm afraid of causing trouble for the country. I wanted to ask you two for your advice."

Old Li and Old Gao exchanged a glance.

"We have no objection. Just be careful. They attacked first; we were just retaliating. There's nothing wrong with that."

"Alright, then I'll do it without worry. I'll handle the aftermath properly. Aside from this nail, which they know was sent by us, I'll make sure they can't trace the rest."

She stood up: "Also, should we keep one of these nails as evidence?"

The two elders exchanged a glance and nodded: "It's very necessary. But this should be left to Xu Yunzi and Zhuge Yunhe to handle."

"Okay, I'll leave this one for them."

Jiang Zhiyu put away the documents and was just walking towards the door when Old Gao stopped her again.

"You absolutely cannot be careless again. Even if you don't do this, you can't afford to get into trouble, understand?"