This was Vivi’s first item, the Wall-Busting Hammer… Ah, no, just a useful hammer. As long as it’s a wall, it can break through with one strike.

And just yesterday, like the [Hair Growth Serum] and [Razor], the shop refreshed with the hammer’s destined companion—

【Useful Nails, Price: 100 gold coins (can be purchased repeatedly)】

【At first glance, they are just sturdy and durable nails, but if you nail them to the wall, the entire wall, including doors and windows, will become impenetrable】

【Only by using the [Useful Hammer] can you deal with those annoying walls】

Vivi hoarded a bunch of items that could be purchased repeatedly, and she immediately thought of how to use the nails—to reduce the battle damage caused by vigilantes and villains. These villains always manage to get hold of various strange weapons and love blowing up walls, houses, hospitals, and schools!

Though Wayne always foots the bill for the damage, the annual rebuilding labor costs alone far exceed those of other cities.

She lightly tapped a hole with the hammer, and a wave of hot air rushed out. She peeked inside to see a square room with lava nearly covering the floor and a narrow walkway around the edges, like a corridor built halfway up a mountain without any handrails, looking very dangerous.

Vivi flipped inside; the danger was nothing to her. If she fell, it would save on disposal costs—one thousand gold saved!

On the right side, she found a crawlspace, but once inside, she realized her hands and feet were burned. Understandably so—

The passage was not meant for people but for material transport. Walking through such a high-temperature passage not only burned her shoes but also left burn marks on her body.

However, Vivi had her pain sensitivity set to zero and didn’t notice. Besides, as long as the attack didn’t kill her instantly, she could slowly recover over time, with even the injuries eventually disappearing.

After crawling through several sections, Vivi jumped out of the end of the passage and found herself in a materials warehouse.

Stacks of steel pipes and boxes obstructed her view. Vivi: “……”

She moved her fingers, and the boxes in front of her disappeared.

Vivi: “!”

She wasn’t here for materials anyway. They would be hers eventually. She just stored the materials to find the door.

When Black Mask finishes his life sentence, Vivi will surely return them!

So, she happily started collecting materials.

Meanwhile, her teammates continued talking through the communicator:

“I hacked into Black Mask’s computer and found the blueprints for this factory. There are three more underground levels. Nightwing, can you find a way to get underground?”

“A bit difficult, Red. The new elevator doesn’t go down. I found the old elevator, but I don’t have the access rights. It looks like Black Mask has completely blocked access to the lower levels.”

“At least this proves he’s definitely doing something down there. Stick the magnetic card on the lock; I’ll unlock it for you—”

“……”

“……”

Vivi silently listened to their arrangements, realizing she had joined a complete and efficient team with tech experts, frontline fighters, and logistics support. This flawless team always managed to solve Gotham’s troubles. However, Vivi believed she also had her own methods and glanced at her system package… she would maximize her advantages.

At that moment, Nightwing seemed to think of her—

“Vivi, where are you now?”

Vivi looked up: “…On the first basement level, in the warehouse?”

The entire floor was a warehouse, but after clearing the goods, Vivi found a pole hidden in a corner, connecting the first basement level to the second basement level. She grabbed the pole and slid down.

“Now I’m on the second basement level. When are you coming?”

Nightwing took a deep breath: “Wait there, I’m coming.”

“Probably not,” Vivi said softly, “…because Black Mask is right in front of me.”

Not only Black Mask but also his henchmen. The room was crowded with a bunch of red names. The man in the center, wearing a black mask, had surveillance footage projected on the wall. As Vivi appeared, dozens of guns were aimed at her.

Black Mask was stunned for a moment, then clapped and laughed, “Well done, kid, but your luck ends here. Get—”

Vivi boldly unbuttoned her coat and flung it open.

Black Mask’s voice caught in his throat. He saw the girl in front of him wearing a bomb vest under her coat, with a bomb belt around her waist and a fuse running from her neck to her chest. Black Mask was familiar with this; it was a device that linked the bomb to her pulse, which would trigger all the bombs if she died.

The sweet-looking girl smiled shyly, “I just set this up a few minutes ago. I think it will at least save my life in a critical moment?”

A human bomb tactic?

Black Mask sneered, stepped forward, and grabbed Vivi’s chin harshly, “Alright, girl, tell me what you want!”

Vivi punched him in the abdomen, knocking him to the ground.

Black Mask was a close-combat expert, but he didn’t expect Vivi’s strength to be so great or understand why she did it.

In his eyes, the girl in front of him could only rely on the bomb strapped to her body to threaten him and save her life. She should be a cautious weakling.

——Bombs can only threaten Black Mask and his men, how could they possibly threaten someone who can resurrect!?

Vivi stepped over him and sat down on Black Mask’s chair.

The room fell into silence. Because of the bombs on her upper body, no one dared to make a move. They surrounded Vivi, but whenever her movements were too large, they backed away in terror.

In such a situation, as long as someone is more fearless than you, you lose.

Black Mask feared death, Vivi did not.

To Black Mask, this little girl was a lunatic—

He had only seen one other such lunatic: the Joker. When someone else wore a bomb, it was a life-and-death struggle, but when the Joker wore one, he just wanted to see the funny faces people made and laugh.

The Joker had even danced on stage wearing a bomb vest, inviting Batman to dance with him. The Joker didn’t need a gun; he was more dangerous than any weapon because the true danger lay in the human heart, not in weapons.

Under the watchful eyes of the nervous onlookers, Vivi adjusted herself into a comfortable position on Black Mask’s chair, squinting at him: “Why are you standing there? Sit.”

“If the bomb explodes, we’ll all die, including the little bird in the Bat’s nest,” Black Mask said calmly. He was, after all, a gang leader and wouldn’t be easily scared by a girl. He believed she was bluffing. “You and the bird are close, aren’t you? The bomb’s power will kill us all. If you want money or something else, I can give it to you, kid. Life is long.”

“Bomb?” Nightwing’s voice came through the communicator. “What bomb? What are you doing?”

“But you’ll die before him,” Vivi said sincerely. “And about Nightwing’s death, I feel very sorry.”

“Wait,” Nightwing said, shocked. “I’m not dead yet!”

“Gotham has vigilantes; it won’t get worse,” Vivi said, swaying slightly on the chair with a genuine, innocent smile. “But if you die, Gotham will get better because you’re just trash, right?”

Black Mask could see it: she was serious.

It was laughable and absurd. He had planned everything, and how could he die over something like this? The girl wasn’t even acknowledging him. She stood on the chair and pointed rudely at one of his henchmen: “You, come over and hold the chair for me.”

The henchman looked nervously at Black Mask and then, head down, walked forward.

The girl nailed a nail to the ceiling.

A nearby henchman suddenly sprang up, trying to strangle her from behind to stop her from activating the bomb. But she suddenly produced a knife and stabbed it through her own abdomen, then through the henchman’s waist, nearly cutting the bomb’s fuse.

The stabbed henchman froze, terrified, and the girl kicked him away.

She lightly bit her tongue and turned back to Black Mask with an odd smile: “You can stop me anytime, but… the bomb is very sensitive, and I’m very fragile, you know?”

“…You crazy!” Black Mask didn’t want to stay here playing games with her anymore. He realized the whole day had gone wrong, from the doppelganger’s attack to Nightwing’s weird weapons and now this crazy girl. He should be back at his mansion, drinking a glass of Lafite and continuing his undead army plan!

Did all this really happen today, or was it just an illusion?

“Why avoid it?” The girl seemed genuinely puzzled. “Since you became a gangster, you should have known when you first took a life that you could also be killed someday, right?”

She casually embedded another nail into the wall. Everyone moved aside like a tide to avoid this seemingly weaker girl.

Not only Black Mask but also her teammates on the communicator could hear Vivi say:

“I really think it’s worth dying here. Just calculate: I’m worthless and troublesome—” Unconditionally resurrected, but death still costs money to dispose of the body, “if I can solve Gotham’s strongest gang with just one life, isn’t it a great deal?”

Damn it, Black Mask thought. She’s not just a lunatic; she’s a martyr—she’ll give everything for what she believes is right, including herself. She’s already put herself on the scales.

His attitude softened, and Nightwing was silent, but when he entered the old elevator, it locked without descending. He realized this wasn’t a real elevator but a trap. Black Mask had another way to access the underground, using a fake elevator with complex codes to deceive intruders like vigilantes—so damn it, how did Vivi find Black Mask?

“If you kill me,” Black Mask deliberated, “Gotham’s underworld will still find a new ruler. But we can work together, can’t we?”
Vivi nailed another nail into the ground. Now, in this six-sided room, she had driven nails into five walls.

“Does that mean killing you is meaningless?” Vivi looked up at him, “For every person who died at your hands, it was meaningful.”

The communication channel fell silent.

What terrified Black Mask was that from beginning to end, the girl wore a gentle smile.

She clapped her hands, walked past everyone, and gently opened the door on the last wall. She stepped out with both feet but didn’t leave entirely, leaning against the door frame and giving him one last sweet smile.

A silver nail appeared in her palm. She tossed the nail, and a flash of silver light later, it was driven into the door frame.

Vivi: “Bye~”