Why didn't the blood-sucking monster kill Mei Mei in Digimon I? He had already captured Mei Mei. Why didn't he kill her?

Why didn't he kill Mei Mei in the first episode of Digimon? Seriously, he had already captured Mei Mei at that time. As long as he killed Mei Mei, everything would be settled! Even if he didn't kill Jia 'er or couldn't find her, it didn't matter. As long as the eight of them found one person, they would not be able to win against him. Therefore, this loophole was too obvious…
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Answer 1

" The Vampire Lord's Favorite Wife " is a fantasy romance and magical romance novel written by the author, Gemilai. The general plot of this novel is as follows:

The noble, elegant, and all-encompassing Blood Tribe Monarch, Narod, had actually fallen in love with an ordinary human girl. In his eyes, killing people was not a sin, but a necessity for survival. The eternal life of darkness made him the embodiment of misfortune. He loved her, he couldn't bear to hurt her, but he couldn't have her. When his beloved sister disappeared into the sea of fire, he suppressed his sadness and said calmly," Xiaoyou, it's not that they put you in hell. It's that we are from hell!" All bets were made at the cost of one's life, and in the end, all that was exchanged was death! For the survival of the Blood Clan, facing the slaughter of the hunters, the King of the Blood Clan made an astonishing choice!
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Inabel's Mageweath Workshop was a fantasy sword and magic novel written by the author, Room G330. The general plot of the novel was:

Roy often wondered why other people's sword and magic worlds were filled with passion, youth, and hard work, while his own sword and magic world was filled with jokes, nonsense, and slaps. Moreover, it was often his own face that was slapped.
Why was it that other people's daily lives were full of acting tough and slapping their faces, pretending to be a pig to eat a tiger, and fighting was full of all kinds of gorgeous fighting techniques and gorgeous magic, while his own daily life was full of life? It was not easy for him to have a fight, but it was also full of drama. It was not serious at all.
Later, he finally understood that all of this had originated from his choice to join Inabel's mageweath workshop and become the mageweath apprentice of this beautiful girl.
Yes, this was Inabel's fault.
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The Game Designer of Hogwarts was a light novel, a derivative doujinshi novel, written by the author, Xiao Wen. The general plot of the novel was:

Voldemort: Why? Why? I've already got the Elder Wand, how can I be defeated by you? Harry! "Because I've beaten you a hundred times in the game!" said Harry, wiping the sweat from his nerves on his sleeve. Voldemort: What? What game? Defeat me a hundred times? Hermione: Shut up, you're going to die! Harry, why can't you remember to kill the boss?
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" Bloodsource " was a fantasy-modern magic novel written by Benjamin H. The general plot of the novel was:

The recent serial murders in C City had not been solved, and all the evidence seemed to point to the existence of a creature in doubt-vampires. At the same time, the vampire hunter organization that corresponded to the vampires had also surfaced, and all of this could actually be traced back to 20 years ago? Twenty years ago, vampires and vampire hunters gave birth to an ominous son, which seemed to be the source of everything.
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The Ice Raccoon Mage was a fantasy romance novel written by the author, Amber Nine. The general plot of the novel was:

[Many Cute Beasts]+[Many Beautiful Men]
She was the number one assassin with a spiritual power. Because she betrayed her sect, she was finally killed by a bolt of lightning.
In a flash, she had become the arrogant, despotic, and notorious Baili's Second Young Miss, but she had been caught in the crossfire of an assassination attempt on the princess.
Other than her beauty, she took into account all the shortcomings in the world: scheming, lazy, wretched, and poisonous.
Who was the one who said that an expert must have grace? Want to fight? No problem! Are you going to fight us alone, or are we going to beat you up?
Want to propose marriage? No problem. Turn left outside and leave the betrothal gifts.
[A certain woman: Don't look for me if there's nothing. Just treat me as if I'm dead.] What's the matter? Don't look for me after you're done. Just treat me as if I'm dead. What did you say? Treasure? What? Worth a lot of money? I'll kill whoever said I'm dead!
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" Wait Before Dawn " was a modern romance novel written by the author, Extremely Cute. The general plot of this novel was:

" The first and last place team up. It's really touching."
"What do you know? This is called complementing each other." "Why can't humans live in peace with vampires?" "Do you hate vampires?" "I only know that protecting humans is my duty. Any species that harms humans is my enemy." "If I were a vampire, would you still love me?" "Then you better not die in my hands." "Do you still believe me now?" " I'm sorry, I have to stand with the humans now." "I still want to die in your hands."
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" The Warlock of a Beautiful Man " was a sci-fi time-travel novel written by Xian Yu Bei Ke. The general plot of the novel was:

He was a demon follower, a mechanical army, and started an interstellar war with the power of dark energy. He occupied a place in Marvel as a demon lord, and in the beginning, he only wanted to survive in Marvel. This was the story of a Hearthstone warlock who mainly summoned demons and wandered through the collapsed Marvel World.
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" Demon Tail's Digital Summoning " was a light novel written by the author, Wu Ming. The general plot of this novel was:

He was the first unlucky child in history to transmigrate because he choked to death. Was this the world of Yao Wei? Then why can I summon a Digimon Beast? They were completely different! Well, who cares? Go, Yagu Beast, evolve!
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" I Hunted Demons in the Other World " was a suspense novel written by the author, Snail Will Rampage. The general plot of the novel was:

In Gu Xiaoming's heart, the boundary between humans and demons was actually very vague. Demons deserved to die, but so did evil people. He could do it. The only way was to kill-wait a minute! Why did he take out the Armstrong Cyclone Jet Armstrong Cannon to kill a monster?
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Loli's World of Warcraft was a game novel written by the author, Rotating Diandian. The general plot of the novel was:

Lolita was common, but lolita whose family was involved in an extreme religious military organization was rare. r
There were many animal companions, but there were not many who could speak fluent cat language, had portable ears, and could transform. r
Ji You was common, but Ji You, the former queen who had rich experience in being attacked and had the talent of playing Beast King but could never keep her pet, and Ji You, who was obviously a tentacle monster but had no interest in magic girls, were rare. r
Vampires that were raised as pets were common, but it was rare to see a vampire girl who dreamed of owning a cactus kingdom, would be shy and happy when slapped, and loved to court death. r
…\r
In the legendary Azeroth, where would Loria H. Mograine lead the Scarlet Crusade?