Dark secrets ~ Rengoku x reader

𝑯𝑶𝑻𝑬𝑳/𝑻𝒓𝒂𝒊𝒏𝒊𝒏𝒈

Y/N decided to stay at a small hotel in a secluded town, using it as a base for her training. Even in the darkness, she continued to push herself, honing her skills and preparing for the battles that awaited her. As the night deepened, she felt a gaze upon her, a prying presence that set her senses on edge. Without hesitation, she readied herself for an attack.

Just as the demon lunged at her, ready to strike, it suddenly halted, frozen in fear. Y/N lowered her mask, revealing her crimson eyes that mirrored her father's. The demon took a step back, its fear palpable. Y/N put a finger to her lips, urging silence. The demon, now petrified, scurried away into the darkness, heeding her unspoken warning.

Putting her mask back on, Y/N returned to the hotel, her mind still racing from the encounter. She entered her room, a mixture of relief and adrenaline coursing through her veins. Smiling softly, she reached for her father's copy of his iconic hat and outfit, cherishing the connection it symbolized. For the first time, she decided not to wear the mask, allowing herself to be seen as she truly was.

Leaving the hotel, Y/N walked through the beautifully lit town, her striking resemblance to her father drawing the attention of onlookers. Whistles and murmurs followed her, but a single glare from her sent them scattering away, ensuring her solitude. She continued her journey, relishing the taste of delicious food and finding moments of respite amidst her rigorous training.

Meanwhile, in a nearby town, Rengoku, Mitsuri, and Obanai, three Hashira of the Demon Slayer Corps, were engaged in a conversation. Obanai, the Snake Pillar, brought up an intriguing topic—a story from the past about Muzan's human daughter and how the Upper Moons had been seen protecting her. Mitsuri, the Love Pillar, chimed in, recalling a rumor about Upper Moon 6, Daki, exhibiting motherly affection towards the child.

Their discussion was interrupted by a sudden commotion. Y/N had overheard their conversation, causing her to spit out her drink in shock before fleeing from their presence. The three Hashira, perplexed by her reaction, exchanged curious glances, the mention of Muzan's daughter resonating deeply within them.

"I couldn't help but notice that her outfit resembled Muzan's," Obanai remarked, his voice laced with surprise. Rengoku's eyes widened with realization. "Yes, and she appeared to be a teenage girl. Could it be Muzan's daughter?" Mitsuri pondered, her voice filled with wonder and intrigue.

Determined to unravel the truth, the trio decided to follow Y/N, their footsteps silent as they trailed behind her. The night grew darker, and one by one, the lights in the town extinguished, leaving only the flickering glow of Y/N's room visible from afar. Curiosity and a sense of urgency spurred them on.

Gazing through her window, the Hashira caught a glimpse of Y/N surrounded by cherished possessions, her tears flowing freely. She wore a kimono crafted from the fabric of the Upper Moons' attire and her parents' outfits, embodying the essence of her twisted family. They listened as she cried out for her mother, her anguish piercing their hearts.

To their astonishment, Daki, Upper Moon 6 and Y/N's supposed mother, materialized in the window, her presence bringing solace to Y/N's sorrowful heart. Daki spoke soothingly, assuring Y/N that they all missed her dearly, including her father, Muzan. Obanai, Mitsuri, and Rengoku watched in awe, their understanding of Y/N's complex family dynamics deepening with each passing moment.

As Daki bid her daughter farewell, promising that they would not be able to see each other for a while, the Hashira quietly retreated, their minds spinning with revelations. It was clear to them now that Y/N was not a demon but a human, bearing the bloodline of Muzan Kibutsuji himself. Her unwavering love for her twisted family, despite their dark secrets, resonated deeply within their hearts.

Back in their own realm, Obanai, Mitsuri, and Rengoku reflected on the encounter, their emotions in turmoil. "She is a human, and her mother is Upper Moon 6," Obanai stated, his voice laden with astonishment. Mitsuri added, her voice filled with admiration, "Not only does she possess remarkable strength, but she also displays unwavering love and loyalty towards her family, regardless of their true nature." Rengoku, his eyes burning with determination, spoke with unwavering conviction, "We must keep a close eye on her. She may hold the key to unraveling the secrets of Muzan Kibutsuji and the demon world."

And so, an unexpected connection was forged between the young demon slayer, Y/N, and the trio of Hashira. In their shared journey, they would discover the extent of her strength, uncover hidden truths, and forge bonds that would shape the course of their intertwined destinies.