Fated From The Start (Hataraku Saibou fanfic)

15: Onto your arms

The lifespan of white blood cells ranges from 13 to 20 days, after which time they are destroyed in the lymphatic system. When immature WBCs are first released from the bone marrow into the peripheral blood, they are called "bands" or "stabs." Leukocytes fight infection through a process known as phagocytosis.

The over most people think of - the neutrophil polymorph or 'pus cell' - has a lifespan of 3-7 days. Lymphocytes and monocytes have a wider range of lifespans and some can live for years. ... The life span of wbc aka white blood cell is considered between 13 days 20 days. Also it depend on the person's immune system.

These cells are not able to renew their lysosomes (used in digesting microbes) and die after having phagocytosed a few pathogens. Neutrophils are the most common cell type seen in the early stages of acute inflammation. The life span of a circulating human neutrophil is about 5.4 days.

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It's the fifth day. Ah, Life is short, I met RBC when I was still a Myelocyte, then I met RBC once again, and we became lovers.
I guess i'll die.
Or maybe i'll never see her again.
It was fun, I really had fun.

"White blood cell!" RBC walked near me then I suddenly collapsed.
I don't hear a thing, maybe a little.
My eyes are not widely open, but I still can see RBC.

Red Blood Cell
"White blood cell!" Killer T said
"Killer T... what happened?" I asked
"I think, it's the end of him."
"........"
"I should call Macrophage and the others." Killer T said then he started to run fast.

Tears are starting to stream down on my face,
No... it can't be.
Why is it too soon?

White blood cell suddenly opened his eyes widely, he's feeling weak.
He's lying down on my arms.
"H-hey, don't cry." He said
"Don't?! No! I don't wanna stop crying!" I said
"Did you call the others?"
"Killer T did."
"I see."
"White blood cell..."
"It's the last day. Life is too short."
"I know... but!"
"It's quite fast, I wanna live longer but there's nothing I can't do." He said then he frowned
"...." I left speechless, then Killer T came back. Without saying a word.
WBC hold my hand, he smiled.
"Hey, do you remember when we first met? We were still weak before, but now were grown up. We a full fledged WBC and RBC."

I can't say anything.

"It's been fun. But, now i'm gonna part."
"Don't say that."
"I love you and all but, please... just let me go."
"Y-you're not playing fair..."
"Sorry..."
"I wanted those fun times last forever."
"Wait, don't try to bring everything to a close. I-I'll think of something..."
"No thanks..."
"But... Why are you staying calm and composed?" I said, while tears are streaming down on my face.
"I had fun after all, now i'll just stick to watching you from the heavens."
"Stop talking like that!"
"I guess 'disappear' is a poor choice of words."

"Knock it off. I don't even know who is the child here." Killer T said

"It's okay RBC. I know we just started dating but, I think it's over."
"You just don't get it don't you?! Stop talking about yourself and put yourself in my shoes for a second!"
"Red blood cell..."
"I'm a lost girl right? Yeah, I wanna spend my entire life with you but that didn't work," I wiped my tears, "I wanna spend my entire life lost with you!"
"Red blood cell..."
"I know that wouldn't work..."
"Red blood cell! What wouldn't work. But I want it work."

I can't even stop crying.

"Come on, RBC. We'll always be together even were apart. The memories I have won't disappear. I'll be always by your side. Our bond will live forever."
"I know but, I wanna live with you more longer. Stop saying that you'll be gone forever because I won't accept that! Don't mess with me!" I yelled at him while crying.
"It's okay." He smiled, "I had fun. Thanks for everything. By the way, I have a gift for you before I part."
"W-what is it?" I said while wiping my tears
"This." WBC cupped my face then he kissed me on the lips then he started crying.

"I've always love you, Red blood cell." He said while lying on my arms.