Hi all, this is my first time to write story of my original character of Kimetsu no Yaiba, I'm really sorry for grammatical errors and other mistakes, because English is not my main language, but I hope you can enjoy my story c:

Happy reading ~

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Kimetsu no Yaiba

Credit: Koyoharu Gotouge

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Saiwai Suzumi was a girl with maya blue-eyed, in the past, she lived with her family in town and became best friend of Zenitsu because their age were same.

Unfortunately, their friendship almost broken because Zenitsu suddenly disappeared from her life, she heard that he moved to another town without telling her.

Suzumi felt sad and lonely, she was just in her room everyday, actually she was mad, why Zenitsu left her? She didn't have another best friend besides him.

The older sister, Saiwai Kurumi, feel sorry with her sister's condition. She understood Suzumi's feelings.

Kurumi decided to enter Suzumi's room and sat next to her.

"Nee-chan? Since when you're here? how's the mission?"

Kurumi put her katana beside her, she was smiling to her little sister while Suzumi's felt badmood.

"Why just smiling? Say something!"

"Suzumi, do you wanna learn about how to fight oni with katana?"

Hearing the word 'oni', her maya blue-eyes were wide. "Oni? Are they really exist?"

Kurumi just silent for couple seconds, "Yes, they are really exist, they eat human just like we heard from the stories." Kurumi closed her corn flower blue-eyes and controlled her breath.

"Then? You've been hiding it from me all this time?"

"Nee-chan, if that things really happen, why you didn't let me know it from the first?"

"I'm really sorry, Suzumi... Papa told me to don't let you know about this problem, because you're the only hope in our family."

"Then... Papa..." Suzumi felt tightness in her heart.

"P-papa... w-was k-killed by... d-demons?" Her whole body trembled, tears trickle from her eyes.

"Why did this happen? If I know papa fight demons, I'd join him, then papa wouldn't leave us." Suzumi had sobbed, she could not hold herself anymore.

Suzumi and Kurumi's mother passed away 4 years ago after giving birth their little sister who passed away too 2 days after their mom, and they had to lose their father two and a half years later.

Since that, they were just the two of them, if her sister left for a mission, Suzumi would be alone, but it's not a problem since Zenitsu became her best friend. Because of that, Suzumi felt devastated because of losing another person in her life.

Kurumi hugged her little sister, tried to calm her down. "Aren't you shy? Zenitsu will hear your crying sound, Suzumi."

Hearing her sister's words, the girl was immediately silent, she was very ashamed if Zenitsu really would hear her crying sound.

3 years later, Suzumi became Gems Pillar, she was 16 years old and close friends with Shinobu and Kanao.

She lived alone, her sister, Kurumi, was killed by mysterious demon she never heard 1 year after that conversation.

Fortunately, she was learning about gems breathing from her sister, and tried hard everytime until she became gems pillar after her sister died.

Suzumi was really angry, they killed her only family, she was determined to take revenge. However.

Suzumi wore her gems gradation-colored haori, which was her sister's. She got out from her house to meet Mitsuri. Mitsuri had just harvested honey and she invited Suzumi to feast on honey-based foods and drinks.

"So, you have best friend whose now whereabouts are unknown?" asked Mitsuri while taking a honey cookie.

"Yes, although he was crying-baby, but he was strong, I know it, but now I don't know how he is." Suzumi looked her honey-based drink in her cup.

"Ah, I feel sorry to hear that. But don't worry, I'm sure you will meet him again."

"Thank you, Kanroji-san, I hope that too."

After Mitsuri's house, Suzumi went to butterfly house, she want to ask Shinobu how was the mission in Mt. Natagumo. She heard that one of twelve demon moons was killed, and she want to listen the story.

When arrived at butterfly house, Suzumi didn't see anyone in the yard. 'Must be there are patients here.'

As usual, she directly walked to Shinobu's room. "Konnichiwa, Saiwai-san," Aoi greeted, she was bringing clothes with her hands.

"Ah, Aoi-chan... Look like you're so busy today," Suzumi said.

"Hai, this all because of those three having wounds whole their body, but it's ok now."

"Those three?"

"Tanjirou-san, Zenitsu-san, and Inosuke-san, they are new demon slayers who have recently joined."

"Oh... It must be hard." Suzumi nodded her head, she just knowing Tanjirou, who had little sister that changed to demon.

"Then I'll excuse myself first, Saiwai-san, I have to give them this change of clothes."

"No problem, I have to meet Shinobu-san anyway." Suzumi smiled then Aoi left her in a hurry.

Suzumi continued to walking to Shinobu's room when suddenly she just realized Aoi's words earlier.

"Tanjirou-san, Zenitsu-san, and Inosuke-san, ..."

'Ah, it's impossible that's him, it must be other person with same name.'

"Ah, yesterday Tomioka-san who killed the lower fifth of twelve demon moons."

"Sou desu ka..."

"At the first Tanjirou-kun who was cutting off the demon's neck by his nichirin but the demon tricked him."

"By the way, I heard there was demon family there."

"You're right, Saiwai-san... I killed the sister, Tomioka-san killed the father, Tanjirou-kun and Inosuke-kun killed the mother, and Zenitsu-kun killed the brother."

"So, they got hurt because of that."

"You know? I'm so proud of them, they are new members but able to kill strong enemies."

"I was surprised because what I knew Zenitsu-kun is a coward, it turned out he is strong too, his body was hit by deadly spider poison."

Suzumi took a breath, it was same with Zenitsu whose her best friend.

"Tanjirou-kun and Inosuke-kun too, they weren't from family which have ability to use nichirin and kill demons."

"Yeah, I agree with you, their teachers weren't from their family."

"Just not like us, we learn from our family too."

Suzumi felt sadly again, she remembered her father and her sister, they said that they use katana to fight the villains but the fact is they fight monsters.

"Ah, I have to see them now, do you wanna see them too, Saiwai-san?" asked Shinobu while standing from her chair.

"Yeah, I wanna see them, they have warm heart that make me curious."

Shinobu and Suzumi got out from the room and walked together to the room where the trio squad were treated.

Chapter 1 - end

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