Because the exorcism potion loses its effectiveness gradually based on the number of vampires killed. Every time you kill a vampire, the energy decreases, and the number decreases again as you kill more vampires, until the effect completely disappears.

This is a pattern I figured out after killing several vampires last night, so there's no need to worry about the exorcism potion losing its effectiveness if used too early.

Seeing the sword in Mo Shuwan's hand, the passengers felt much more at ease, but also felt jealous. Why could she have such a good weapon? However, they dared not keep these feelings to themselves, since they still needed Mo Shuwan's protection.

"We are not vampire hunters."

The vampire was hiding somewhere, probably intimidated by the sword in Mo Shuwan's hand, and hadn't spoken yet.

Mo Shuwan waved her sword around, saying, "We are just ordinary humans who occasionally obtained some good things. If you are willing to convert us into your kind, I can give you the good things I obtained."

Mo Shuwan spoke slowly, pacing around as she spoke. The demonic energy charm in her pocket was burning hot, and the vampire was still lurking nearby.

"ah!"

With a thud, a passenger fell to the ground, immediately pulling out his exorcism potion in terror and pouring the entire bottle over himself without hesitation. Only after doing so did he stammer, "Someone attacked me!"

Mo Shuwan and Wen Zuo naturally guessed that the vampire had attacked him earlier. He was covered in exorcism potion, and the vampire, having suffered a loss, would certainly not show itself again easily.

Mo Shuwan and Wen Zuo frowned, and at the same time turned their gazes to Yang Zhou, who was tied to the tree.

The two approached each other, glanced at each other, and Mo Shuwan said, "Don't worry, that vampire was injured and must have left. It's alright."

She and Wen Zuo walked up to Yang Zhou. Mo Shuwan took out a watermelon knife from her backpack and asked, "How did you get arrested? What other schemes do the vampires have up their sleeves?"

Yang Zhou, now free to speak, hurriedly shared the information he had received: "This afternoon I found traces of that mother and child in the alley. I went in to check, but I was suddenly knocked unconscious. When I woke up, I was tied up here. It was the vampires who kidnapped me. They seem to have discovered that we killed the vampire last night."

"Oh, I see. Thank you for your hard work." After cutting the rope, Mo Shuwan reached back to put the watermelon knife back in her backpack, but suddenly paused and handed it to Yang Zhou, "You take it, it's safer for you."

Yang Zhou was stunned for a moment before he realized he had to take it. He was a little absent-minded and was suddenly knocked off balance by the weight of the specially made watermelon knife.

Yang Zhou quickly took the knife, his fingers feeling the hilt, his eyes flickering slightly. After a moment, he cautiously said, "I overheard them saying that some special vampires will appear at the banquet tonight. They used to not appear at these kinds of banquets, but these special vampires were injured by vampire hunters and have to appear at the banquet to survive."

Mo Shuwan suddenly stared intently at Yang Zhou, "Special vampire? Who said that?"

"It was one of the vampires who tied me up here who said it." Yang Zhou paused, then laughed self-deprecatingly. "Maybe they saw that I posed no threat, so they even said such things to my face. To be honest, when I heard this news, I thought I was going to die. After all, the more you know, the faster you die."

Mo Shuwan chuckled.

Yang Zhou looked at her sincerely and said, "Thank you, you saved me."

Mo Shuwan casually reached into her pocket and pinched the increasingly hot demonic sensing talisman.

The vampire is approaching.

She lowered her eyes, stuffed the sword in her hand into the bag outside her backpack, took Wen Zuo's arm with her other hand, and turned her back to Yang Zhou, preparing to leave. "The vampires are all gone, let's go too."

The only light came from the flashlight in Wen Zuo's hand. As soon as they turned around, Yang Zhou was plunged into darkness. He was trembling all over because a vampire was stuck to his back, and the vampire's fangs were embedded in his neck.

After a moment, he was forced to ask the question the vampire wanted to know, "Mo... Mo Shuwan, did you... did you apply exorcism potion to your body? I feel it's not safe for you to keep your sword in your backpack."

Without turning her head, Mo Shuwan said, "I didn't apply it. Don't worry, the vampire is gone. There's no threat."

It didn't leave; it just lay on me and sucked my blood!

Yang Zhou roared inwardly, his eyes filled with despair.

As the vampire sucked blood, his eyes were fixed on Mo Shuwan, who was leaving with her back to him. The sword was dangerous, and now it was no longer in that woman's hands.

Sensing an opportunity, the vampire drew his fangs and silently approached Mo Shuwan, who seemed completely unaware, still muttering to herself and Wen Zuo with her head down.

Feeling dizzy from blood loss, Yang Zhou watched as the vampire reached out to Mo Shuwan. He clenched his fist, his fingertips touching the cold hilt of the knife. Instantly, as if jolted awake, he roared in a hoarse voice, "Little—"

Yang Zhou, who hadn't even had a chance to utter the word "heart," stared blankly at the vampire lying on the ground.

Mo Shuwan squeezed the demon-sensing talisman in her pocket. This time, there really were no vampires. She turned her head to look at Wen Zuo, who was pulling a knife out of a vampire, and couldn't help but laugh: "I was worried that you wouldn't understand. You scared me."

Upon hearing this, Wen Zuo gave an embarrassed smile.

To be honest, she was genuinely worried that Wen Zuo wouldn't understand, so she kept giving him hints as she turned to leave. Who knew that he not only understood but also cooperated very well? This surprised Mo Shuwan, as no one had ever understood the meaning behind her every move so quickly.

The passengers who were walking back with them were all confused, not understanding why, even though Mo Shuwan had said there were no more vampires, a vampire had appeared and been killed.

A moment later, someone said in a hoarse voice, "You...you were all acting the whole time? You knew the vampires hadn't left?"

Although the tone was questioning, it conveyed a sense of certainty.

"Yes, I know." Mo Shuwan took Wen Zuo's hand and forced him to shine his flashlight on Yang Zhou, who had fallen to the ground. "Get up, we're going to a banquet tonight."

After saying that, he and Wen Zuo turned and left, this time for real.

Yang Zhou, watching their backs, felt a chill run down his spine. His lips moved for a moment before he silently got up from the ground, gripped the specially made watermelon knife tightly, and stumbled after them.

Just as that person said, as long as they were told there were special vampires, they did not hesitate to attend the banquet.

Instead of returning to the park to meet the passengers, the group sat cross-legged near the building and waited for the banquet to begin.