I know it's not Christmas, but still have vibe there.

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Night around Europe, is snowing falling from the sky. In the sky, Femlee riding a Santa sleigh, she's wearing still wearing her white and black dress, but wearing Christmas cape with bell. The one who pulled sleigh is Kori and and Kwak Sang-yo. They dressing as Yuletide, but only wearing the antlers hairpins.
Sang-yo: Femlee, why we do this again?
Femlee: the Santa told us to deliver these last present sack. I count it all, it's have 13 presents.
Kori: 13 presents? Isn't that bad luck number?
Femlee: do you still believe that myth?
Kori: not really, however, people still believe that number is bad luck. The Santa must be have something with that presents, that's why he asked you to deliver them.
Femlee: I guess you right.
Twenty minutes ago on field.
Femlee: what? You want me to deliver this sack?
Santa: yes, my dear. You are the one hunter who accepted my commission.
Femlee: (I don't want to tell him that I was accidentally tap it.)
Santa: moreover, I admitted, even you in different country who never snow, you still accepting my commission.
Femlee: ...
Santa: ah, apologize, I will straight to the point. Femlee, I need you to deliver this sack for the people who needs these presents. It's different from mine, that's why I asking you to do it. You can use my another sleigh but... do you have reindeers or something similar?
Femlee: hmm... Kori, Kwak Yang-so.
Kori and Yang-so summon.
Santa: ah, a summoner, such outstanding. Fortunately, I have this outfit for helping to fly. Here *give Kori and Kwak Yang-so antlers hairpin and Santa cape for Femlee* Wear that and you can fly. Now, off you go. Once you done I have special reward for you.
Back to present.
Femlee: ... *reading the list*
Yang-so: you know who will receive this?
Femlee: I don't know, it's only tells place like riverbank, bridge and building's roof.
Kori: something's not quite right. Where should we headed? Should we follow the list or randomly?
Femlee: let's follow the list from start.
They flew to riverbank. They see a little therian boy, standing at riverbank. They landing the sleigh and Femlee took out the present. She walk to the little boy and those two watching her from behind.
Femlee: here.
Femlee give him present and the little boy take it. He bow slightly and walk to river, he slowly going down and disappear. Suddenly, Yang-so grab his note and see.
Kori: what the note said?
Yang-so: the boy is victim of bullying. He died by drowning.
Femlee: as I thought, we delivering the lost souls. The bridge is 100m from here.

Femlee hop on the sleigh and move. They arrived at bridge, there's a therian young lady, the appearance like an high school. Femlee give the present to her and she take it. She nod and fall herself to river.
Yang-so: she committed suicide, no one believes she had severe depression, even her parents. Can't hold it anymore and committed suicide here.
Femlee return to sleigh and flew away. While flying, Femlee scrolling through her phone.
Femlee: this sleigh have a Wi-Fi, cool.
Kori: where's next?
Femlee: building's top on North.
They flying to North, they see building and flying up and arrived at building's top. There's a therian man who work in that building. Femlee give him present, he just silent and fall himself.
Femlee: Yang-so, this building has 46 floors, how much speed he will fall to the ground.
Yang-so: *write and using formula* average building floor is 3,5 or 4 meter, 46*3,5 or 4 m = 161-184 meter. Residential has 3 meter, 46*3 m = 138 meter. Mixed-use means this building has 4 meter per floor, 46*4= 184 meter. That means we use speed fall, speed fall is 9,8 m/s². Speed = Square root 2*9,8*184= square root 3603,2 = 60 m/s². Is enough to destroy the body.
Kori: you really counting that?
Yang-so: that she's order. Plus, I do know bit math back in my prime. Counting souls is not easy, you know.
Femlee return to sleigh and they fly away. Few minutes later, they already send 8 gifts.
Femlee: hit by train, by car, accidentally fall from stairs, get murdered, overdose and hang himself. Only five left presents.
Kori: let's send these quickly.
Yang-so: should we taking a break? My legs feel tired.
Femlee: hmm... Fortunately, he said, "if sending more than five, you can have a break in shelter near school".
Yang-so: yes...!!
They landing to road, however, they like hitting something.
Femlee: are we hit someone?
Yang-so: no, did you see it?
Kori: no.
Femlee: me neither.
Femlee look back and see black figure.
Femlee: oh, it's Leece.
Femlee drop off from sleigh and checking him.
Femlee: she's look flat, literally. *grab and flap*
Leece: ohh!! Goddamn, Femlee! Why you hit me?!
Femlee: i didn't see you back there.
Leece: fuck... it hurts. Wow... you guys as Santa now?!
Femlee: not really? We sending lost souls.
Leece: lost souls?
Yang-so: the souls who not going to afterlife, they still stuck in here and Santa ask her to help him.
Leece: oh... I see...
Then, they all going to shelter. Inside shelter, they eating snacks and hot cocoa.

Yang-so: I was just eating three breads and I'm already full!
Kori: ...
Leece: how many gifts we got?
Femlee: five more.
Leece: let's hurry, then.
They return to sleigh. They sending four gifts.
Femlee: the last one, it's near that factory warehouse.
They landing near warehouse. Femlee take gift and off from sleigh, Kori also follow her.
Leece: Yang-so, do you feel odd about this one?
Yang-so: kinda.
Leece: why she die in factory, though?
Yang-so: probably technical error or something. It's not in the note.
Femlee send the last present, she just silent and return to warehouse. Femlee and Kori walk to sleigh, however...
Leece: Femlee, look out!!
The warehouse suddenly release fire, Kori quickly front Femlee, draw his Katana and make ice barrier. The warehouse suddenly exploded.
Yang-so: she died by gas explosion!
Femlee also helping Kori with her Ebony.
Femlee: hanging there, Kori.
Kori: ...
The ice is slowly melting. Yang-so dash to warehouse, he release his sword and using his ice wave to extinguish the fire. But it's no use. Leece also joining, she fly above the warehouse and use her water element. She shower the warehouse using water orbs. The warehouse slowly extinguished. Kori kneel down and panting.
Femlee: you doing great, Kori.
Kori: don't mention it, haaa...
Yang-so: that fire was really big. That's why lots of people died there, including her.
Later, they return to sleigh. They return to field where they meet Santa Claus. However, Santa isn't there, only present box. Femlee open and there's a note. The note said, "dear Femlee, I truly thank you for sending those 13 gifts and the souls is peace now. I wish I can see you return but I have important things to do. Your reward is inside this present box. Sincerely, Santa Claus, Merry Christmas!". Femlee take out the small pouch, she grab inside and there's an 'aswad crystal.
Femlee: an 'aswad.
Leece: who's that?
Femlee: a deer? *scan through phone* ancient type 'aswad, Blitz. But... it's not true or turned, still unknown.
Leece: how the hell he have this 'aswad?
After that, the sleigh is gone.
Yang-so: the sleigh is gone?!
Leece: should we through door?
Femlee: no, Kori.
Kori slowly turn into dragon form. Everyone hop on his back and Kori fly away into snowy sky. Femlee lay down on Kori's body while examining the crystal.
Femlee: ...
The crystal turn into dust.