A/N: I do not Own Demon Slayer,Kimetsu No Yaiba. The Manga/anime belongs to Ufotable & its author Koyoharu Gotouge.
This is an alternate universe where in things happens somewhat differently than in canon although few things are similar. Yes Tanjiro & Nezuko will be overpowered since they will become Gods. To make up for it I will ensure Muzan will be much stronger than his anime and manga counterpart in simple words what he didnt achieve in canon regarding blue spider lily he will achieve it here so the final battle will be interesting. I have been a fan of pairing the main characters with other obscure characters. After seeing what Tanjiro went though in the manga and anime I decided that my boy needs lot of love so he will be paired up with three women maybe four. Yes, the pairing will be Tanjiro/Kanae/Shinobu/OFC/maybe Kanao but the first 3 are confirmed. This story will start way before Kanae and Shinobu become Demon slayers and Tanjiro is a kid back then.
The gentle chirping of birds echoed through the forested path as a small boy with ruffled black hair walked beside his father. The sunlight filtered through the trees, casting a warm glow on their path as they carried their load of charcoal. Tanjiro Kamado, his wide red eyes filled with wonder and excitement, kept pace with his father, Tanjuro, a man of humble strength with a serene yet weary expression. The young boy often admired his father's calm demeanor despite the hardships of life.
"We're almost there, Tanjiro," Tanjuro said, his voice soft but firm. "The Kocho family's estate isn't too far."
Tanjiro nodded eagerly. His innocent curiosity bubbled over as he had heard many things about the Kocho family in passing conversations with the villagers. The Kocho household was well-known for their wealth, generosity, and expertise in compounding medicine. Even the way their name was spoken seemed to carry an air of grace and reverence.
When they reached the estate, Tanjiro was struck by its beauty. The Kocho house sat nestled in the lap of nature, with manicured gardens and butterflies fluttering lazily over blooming flowers. The sight was enchanting.
"Wow..." Tanjiro gasped, eyes widening in awe.
Tanjuro smiled warmly at his son's reaction. They approached the large wooden gate, and a servant soon ushered them in with respect, bowing as they passed. The smell of herbs and floral incense filled the air, soothing Tanjiro's senses.
Inside, the Kamado father and son were warmly greeted by the Kocho patriarch, a tall, dignified man with sharp features and kind eyes. His wife, the matriarch, stood beside him, her elegance matched only by the warmth in her gaze.
"Ah, welcome, Kamado-san!" The Kocho patriarch spoke with a smile. "It's been a while. How is the family?"
"We manage, as always. The seasons have been kind to us so far," Tanjuro replied, bowing slightly in gratitude for the warm reception.
"You must be Tanjiro," the matriarch spoke, her voice like a gentle breeze. Her eyes settled on the young boy, who stood somewhat shyly beside his father. "Such a polite young boy."
Tanjiro bowed deeply. "Yes, ma'am. Thank you for having us."
"Please, come in. Let's share some tea before we discuss business," the Kocho patriarch offered, motioning towards a large open room with wooden floors polished to a shine.
The Kamado duo followed them into the elegant room, where steaming cups of tea awaited. Tanjiro carefully cradled the cup in his small hands, his eyes flicking around the room, taking in every detail.
As they began to sip their tea, there was a soft shuffling sound behind them. Tanjiro looked over his shoulder curiously, and there they stood.
Two young girls, each radiating a beauty and grace that seemed almost otherworldly.
The first was Shinobu, petite in stature but with an undeniable presence. Her large, gradient-purple eyes lacked pupils, giving her a mysterious and almost hypnotic appearance. Her hair, raven black with deep purple tips, framed her face perfectly.
Beside her was her elder sister, Kanae, tall and elegant, her long black hair flowing down past her hips. Her pale violet eyes sparkled with curiosity and warmth, like a summer's breeze.
Tanjiro's breath caught in his throat. His young heart, not yet fully capable of understanding the depth of emotions, beat a little faster.
The patriarch chuckled softly. "These are my daughters, Shinobu and Kanae. Girls, this is Kamado-san and his son, Tanjiro."
Shinobu and Kanae stepped forward gracefully. "It's a pleasure to meet you," Kanae said, her voice soft and melodic, bowing slightly. Shinobu followed suit, though her smile had a mischievous edge.
Tanjiro stood there, wide-eyed, and blurted out without thinking, "You two look like angels!"
There was a beat of silence as the words hung in the air, followed by laughter from both the parents and the Kocho sisters.
"Angels, you say?" Kanae smiled, her eyes twinkling with amusement. "You're too kind, Tanjiro-kun."
Shinobu tilted her head, her smile turning into a smirk. "An angel, hmm? That's a first." She glanced at Kanae, her eyes playfully narrowing. "Sister, do you think we have wings hidden somewhere?"
Kanae chuckled, her laugh light and infectious. "Perhaps Tanjiro-kun can find them for us."
Tanjiro's face flushed crimson, his hands waving in front of him as he stammered, "I-I didn't mean it like that! I just—uh—they're so pretty and—"
Tanjuro, seeing his son flustered, chuckled softly. "It seems my son has a way with words."
"Indeed," the Kocho patriarch nodded, clearly entertained by the interaction. "Tanjiro-kun, would you like to spend some time with my daughters? They can show you around the gardens while we handle matters."
Tanjiro blinked in surprise, then turned to his father, who gave him an encouraging nod.
"Yes, sir!" Tanjiro said eagerly.
Kanae extended her hand toward the young boy. "Shall we, Tanjiro-kun?" she asked, her voice gentle.
Hesitantly at first, Tanjiro took her hand, feeling the warmth of her palm against his. Shinobu, walking beside them, crossed her arms behind her head, glancing at Tanjiro with curiosity as they made their way outside to the lush, expansive garden.
"So, Tanjiro-kun," Shinobu began, her tone teasing. "Do you compliment all the girls you meet, or are we special?"
Tanjiro scratched the back of his head nervously. "N-no, it's just...you two are really, uh, nice and pretty. I've never met anyone like you before."
Kanae smiled, a touch of affection in her eyes. "We appreciate the compliment, Tanjiro-kun. You're very sweet."
As they strolled through the garden, butterflies flitted around them, adding an air of enchantment to the scene. Tanjiro's earlier nervousness began to melt away as he talked with the sisters. He marveled at the delicate flowers Kanae pointed out, listened to Shinobu's sharp-witted humor, and even shared stories about life in the mountains with his family.
"You seem to care a lot about your family," Kanae observed after listening to one of Tanjiro's stories about helping his siblings.
"Yes," Tanjiro replied earnestly. "I want to protect them. I want to be strong like Father."
Shinobu's gaze softened, though her smile remained playful. "You'll grow into it. Maybe one day, you'll be strong enough to protect everyone you care about."
Tanjiro nodded firmly, determination igniting in his heart. He had no idea at that moment just how true those words would one day become, nor how his fate—and that of his sister, Nezuko—would spiral into something far beyond even the wildest of dreams.
As the sun began to set and the day drew to a close, Tanjiro and the Kocho sisters returned to the main hall, where Tanjuro and the Kocho parents had finished their business.
"You made some good friends, Tanjiro," Tanjuro said as they prepared to leave, his eyes twinkling knowingly.
Tanjiro smiled shyly, glancing one last time at Kanae and Shinobu, who waved goodbye with warm smiles.
"I hope we meet again soon," Kanae said softly.
"Take care, Tanjiro-kun," Shinobu added with a wink.
As Tanjiro walked away with his father, the warmth of that day lingered in his heart. The Kocho sisters, like angels in his young mind, would remain in his thoughts for years to come.
Little did he know that this meeting would be the first ripple in a fate that would change the world, as the Kamado siblings would one day transcend the mortal plane, becoming living paradoxes—forces of death and undeath. But that, for now, was a future hidden in the folds of time.
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The Kocho estate had become a second home for Tanjiro Kamado. Ever since his father, Tanjuro, grew too ill to make the frequent trips into town, Tanjiro had taken on the responsibility of delivering charcoal to the Kocho family. Each visit was met with warm welcomes, delicious tea, and the radiant presence of the Kocho sisters. Every time Tanjiro arrived, a wave of happiness seemed to sweep through the household.
Though he was still young, he had grown from the shy boy who first stepped into their grand estate, developing a close bond with both Kanae and Shinobu. Tanjiro's kindness and sense of responsibility won them over completely. And on occasion, he even brought his family along with him.
"Tanjiro-kun! Nezuko-chan!" Kanae greeted them with a wide smile as they entered the garden. She was always happy to see the Kamado siblings, especially Nezuko, who had become like a younger sister to her and Shinobu. "It's wonderful to see you both again."
Nezuko, ever the quiet one, smiled back warmly. She was younger than Tanjiro, with long, black hair tied into a bun with dark pink eyes, and her gentle demeanor made her an instant favorite with the Kocho sisters.
"Thank you for having us again, Kanae-san," Tanjiro said with his usual polite tone, though his eyes sparkled as they met hers. He was excited to spend time with the sisters, but what thrilled him even more was the sense of belonging that came with being in their presence.
Shinobu peeked out from behind a tree, pretending not to be interested but failing to hide her mischievous grin. "You're here early today, Tanjiro-kun. You're not trying to escape your chores at home, are you?"
Tanjiro laughed, scratching the back of his head. "No, of course not! I finished everything early so I could come see you and Kanae-san."
Shinobu stepped forward, a satisfied smirk on her face. "Hmm, I'll take your word for it." She turned her attention to Nezuko, a softer expression crossing her face. "How about you, Nezuko-chan? Have you been keeping your brother in check?"
Nezuko nodded, her small smile betraying a sense of pride in her older brother. "Tanjiro works very hard. We all do."
"That's what I like to hear," Kanae said with a gentle smile, her eyes bright with warmth as she motioned for the siblings to follow her to the garden. "Come on, let's sit by the pond. The flowers are in full bloom today."
As they walked through the estate's vibrant garden, Tanjiro marveled at the blooming flowers, his admiration for nature shining through. Kanae and Shinobu walked closely beside him, one on each side, while Nezuko trailed behind, admiring the butterflies that fluttered around.
Over the next few months, Tanjiro's visits became even more frequent. On days when he was too busy helping his family, he felt a pang of guilt as though he were missing something important. His bond with the Kocho sisters had grown deep, almost like an unspoken promise that they would always be there for one another.
One afternoon, after delivering his charcoal and spending time with Kanae and Shinobu as usual, Tanjiro headed to the garden to search for the sisters. He was surprised to hear raised voices coming from the courtyard just beyond the pond. Curiosity tugged at him as he quietly approached.
"You're being ridiculous, Shinobu," Kanae's voice echoed through the garden, usually so calm, but now holding an edge of frustration.
"Me? Ridiculous?" Shinobu snapped back. "You're the one acting like you're the only one who gets to care about him!"
Tanjiro blinked in confusion, freezing in place as he peered around a corner. Shinobu and Kanae stood facing each other in the garden, their brows furrowed in a rare display of tension between them.
"You've been monopolizing his time," Shinobu continued, crossing her arms. "You think I haven't noticed how you always ask him to help you with the flowers or to walk around the estate with you?"
Kanae's violet eyes widened in surprise, but then a soft sigh escaped her lips. "I didn't realize you felt that way... but you've been the one teaching him about medicine, haven't you? I thought that made you happy."
Shinobu's frustration faltered for a moment, and she looked down, her gaze softening. "It does make me happy… but sometimes, it feels like you're trying to keep him all to yourself."
Before the argument could escalate further, Tanjiro stepped into view, concern written all over his face. "Kanae-san, Shinobu-san… why are you two fighting?"
Both sisters turned to him, startled, their tense expressions melting into embarrassment.
"It's nothing, Tanjiro-kun," Kanae said quickly, her smile returning, though it didn't quite reach her eyes.
"Yeah, nothing important," Shinobu added, though her usual teasing tone was absent.
Tanjiro frowned, walking closer to them. "But it's not nothing. You're both sisters. You shouldn't fight with each other over me."
The sisters exchanged a glance, guilt flickering across their faces.
"If I have to keep you both happy," Tanjiro continued, his voice earnest and sincere, "then… I'll marry you both when I'm older!"
The words slipped from his lips without much thought, but they hung in the air like a spell. Kanae and Shinobu stared at him, their eyes wide with shock, before bursting into giggles.
"You'll marry us both, huh?" Shinobu asked, trying to suppress her laughter but failing.
Kanae's cheeks flushed slightly as she gazed at Tanjiro, her heart softening even more. "That's a very kind offer, Tanjiro-kun."
Without warning, both sisters enveloped him in a tight hug, their arms wrapping around him from either side. Tanjiro blinked in surprise, but he didn't resist. Instead, he stood there, awkward but content, as the sisters giggled softly in his embrace.
"We won't hold you to that promise," Kanae whispered, though there was a tender note in her voice. "But it means a lot to us."
Shinobu rested her head on Tanjiro's shoulder, her voice soft for once, the usual teasing edge gone. "Thank you, Tanjiro-kun."
They held onto him for a moment longer, neither of them wanting to let go. In that brief instant, the seeds of love—real love—began to take root in both Kanae and Shinobu's hearts, awakened by his innocent but sincere words.
From that day on, something shifted between Tanjiro and the Kocho sisters. Their bond grew even deeper, and despite their gentle teasing, there was an unspoken understanding between them that neither would give him up easily.
However, there were also moments of worry, especially when other girls from the village began to show interest in Tanjiro. He was growing older, and his kind nature, along with his ever-growing strength and determination, made him popular among the locals.
Kanae and Shinobu, though never openly possessive, couldn't help but feel a pang of jealousy when they saw other girls trying to get close to him.
One evening, as they sat by the garden pond, Shinobu leaned over, her voice unusually soft. "Tanjiro-kun, you won't forget about us, will you? Even when other girls come around?"
Tanjiro blinked, confusion crossing his face. "Why would I forget about you?"
Kanae smiled at him, but there was a hint of sadness in her eyes. "You're going to grow up, Tanjiro-kun. And when you do, you'll meet more people. We just… we don't want you to forget about us."
Tanjiro's brows furrowed, and he shook his head firmly. "That won't happen. I'll always come back to see you and Shinobu-san. You two are important to me."
Both sisters exchanged a glance, their hearts swelling with relief. Tanjiro's sincerity, his unwavering loyalty, was a rare treasure.
"Good," Shinobu said, leaning back with a smirk. "I'd hate to have to come after any girl who tries to steal you away."
Kanae laughed softly, though her eyes remained on Tanjiro. "You've always been such a sweet boy, Tanjiro-kun. We're lucky to know you."
As the sun set behind the mountains, casting a golden glow over the garden, Tanjiro felt a deep sense of peace. He didn't fully understand the feelings blossoming between him and the Kocho sisters, but he knew one thing for certain—he would never leave them behind.
And neither Kanae nor Shinobu would let him go easily.