It's a Trap...no..I mean he's a TRAP

Early in the morning.

' Mom I'm not still late school Let me sleep some more ' he mumbled.

" Pfft...ha ha.. " a beautiful laughter sounded on the small room making him wake up from his sleep.

Allen could only scratch his head before folding their bed and walk outside to get fresh air.

######

The morning of Kamado family is very beautiful, because there are already breakfast served.

The 3 little wolf, wolf down the food and Yuechan voluntarily eat.

But for Allen, his eyes not on food, always looking outside. Waiting for someone. But even an hour of waiting, no one come even Tanjiro.

As a 20th century boy and also a teenager, not holding a phone is a hell. Being bored, he bought 2 other cellphone and a barbie doll using his GCG.

He downloaded an offline game using his own phone and gave it to the two boys and the barbie for Hakuna.

They ask what is it, but he just said that it's from his country. And being a kid and doesn't go down much in the mountain, the believe him.

The trio keep playing for more than half an hour before they heard Yuechan's voice.

" It's here. " she said alerting the whole family and Allen.

" Here ? What do you mean Yue-san " Nezuko ask confusedly.

Seeing that she's not answering, Kie walk forward to ask but was stop by Allen. Before she could could ask a question, Allen already said something first.

" Kie-san, gather your children behind me " Allen said seriously contrary to his sometime timid personality.

Kie, seeing that there are something serious, obey his words and the children obediently follow.

On the sky, the once beautiful weather was change into gray clouds that even sunlight can't penetrate.

Outside the house. A beautiful black haired lady suddenly appeared. Her eyes is so red, that it makes the children hide in her mother.

" Hmm...an additional two human " the beautiful lady coldy emitting a heavy killing intent making the children to cry.

" Who are you mortal ? " Yuechan ask making the beautiful laugh coldly but elegantly.

" Ha ha ha...a human calling me a mortal. That is the best thing I ever heard for the last hundred years. " she said.

" Miss Yue, he's Muzan. Don't get fool by his disguise it's a trap...no I mean he's a trap. " Allen said to Yuechan.

" Human, you know me ? And what do you mean by disguise ? Are you insulting me ? ' Muzan ' heard Allen voice with her enhance senses.

" Your not a member of that disgusting group. For making me laugh, human girl. I'll let you live and also you, human boy. But I want the family behind you. " ' Muzan ' said to them making the family behind the two shivered.

" What do you have to include them; their just normal people, their innocent. " Allen shouted back.

' According to Mr. Google, the reason Muzan murder the Kamado family it to get revenge. Because of his deep hatred toward the Yoriichi Tsugikuni, the sun breath user. After knowing that Tanjiro Kamado has the same hanafuda earrings, the humiliation and powerlessness came back to him when he fought the Sun Breath User. ' Allen said internally.

( A/N : Just my theory. Don't mind it )

" Ha Ha Ha Ha... Innocent ??? You said their innocent ??? You don't know anything human. Tell that to my family. They didn't do anything wrong. But what did the Ubuyashiki Clan did...we were treated like an animal. For their own selfishness, so that they could attain ' immortality '. And that man; Tanjuro Kamado, if not for him, I already have my revenge and to erase them in this world " ' Muzan ' said, her killing intent is so strong that Allen sweated.

He might not sure if someone bus telling true or not, but even an idiot could tell that ' Muzan ' is saying is true.

' Wrong...wrong...Mr Google is wrong...the system said that the anime is not 100% so that's what it means. ' Allen thought while looking to Yuechan.

Yuechan look back and didn't say anything, but it's more than enough for him to understand what she's saying.

Seeing that they are not talking, Muzan attack first.

Her beautiful hand suddenly turned into long whip- like weapon and on the tip of it is blade.

Her whip-like hand suddenly moved toward them beyond human capacity and before they could reach it.

* Slice *

A icy blade suddenly appeared in Yuechan's hand and easily cut the hand.

" Who are you ?? " she said as the blood in her hand move toward the decapitated whip-like hand and immediately healed.

" Leave " instead of answering, Yuechan said something that she didn't expect.

Yuechan needed to complete their test. 1 is to defeat an Upper Rank Demon and if Muzan was killed she wouldn't know what will to them, that's why she let her to escape.

' This woman is very dangerous, even stronger than the Sun Breath User. ' she thought.

For the Demon Corps. Muzan is not known for his overwhelming strength but it was her intelligent.

Seeing that she's in advantage and her opponent said her to leave, she's more than happy.

Without hesitation, she dash only leaving a gust of wind.

" Muzan !!! " a voice was heard the moment Muzan left. A man around 19-20, long black hair and wearing a dark-cyan tinted version of the normal demon slayer uniform.