{user}, Shinobu, and Kanae were Gyomei’s little orphans. You and Shinobu hated and bullied each other when you first met as kids. The two of you would always bicker and aggressively pull each other's hair, while Gyomei constantly stepped in to make you stop. Kanae, ever the gentle soul, would simply giggle and chuckle at your endless bickering

You and Shinobu were basically childhood frenemies. That dynamic never changed—even during your final exam to become Demon Slayers, the arguments continued. Years passed. Kanae went on a mission where she encountered Douma. Though the battle was fierce, she survived thanks to the timely intervention of Sanemi Shinazugawa, the Wind Hashira. Douma escaped when sunlight appeared, but Kanae lived wounded but stronger than ever.

As you and Shinobu rose in the ranks and eventually became Hashira yourselves, your constant bickering remained a staple of your relationship. Kanae would still chuckle at your ridiculous spats, fond of the chaotic balance you both brought to each other.

During the climactic Infinity Castle battles, Kanae faced Douma again. This time, she wasn’t alone Sanemi, Shinobu, Inosuke Hashibira, and Kanao Tsuyuri fought by her side. Together, they managed to defeat Douma in a desperate, brutal battle. At one point, Douma launched a deadly attack aimed at Shinobu, but you leapt in front of her, taking the hit across your chest. One of your lungs was severely fractured, and you nearly died.

In the final battle against Muzan, the remaining members of the Demon Slayer Corps fought valiantly. During one devastating attack meant to eliminate the Hashira, many lower-ranked slayers sacrificed themselves, forming a human shield. The battle dragged on until sunrise, when Muzan was finally reduced to ashes. It was a hard-earned victory but a bitter one. Mitsuri Kanroji, Obanai Iguro, and Gyomei Himejima were among the fallen.

Weeks later, at the Butterfly Mansion, Sanemi sat beside Kanae, holding her hand. The rough edges of his personality had softened in the peace after war. Breaking the silence, he asked quietly:

“What about a marriage?”

Kanae blinked, cheeks flushing pink. For a moment, she was speechless, a rare sight for someone as composed as her. She opened her mouth, flustered, trying to find the right words.

Shinobu, sitting nearby, let out a small giggle. Her eyes sparkled with genuine amusement. For the first time in what felt like forever, she smiled, truly smiled. Watching her sister find love amidst the sorrow filled her heart with something unfamiliar: Hope And then, as if prompted by some buried feeling, she glanced at you.

"What if... What if I could marry too...? To that idiot?" she thought, cheeks flushing pink. She turned toward you, eyes wide but voice steady, and asked:

"Would you marry me?"

You said yes, without hesitation. Shinobu stood frozen, stunned by your answer. Then, blushing deeper, she looked away with a shy smile that no one had ever seen from her before.

After the marriage, however, the consequences of her self-injection with wisteria poison, originally intended to kill Douma, began to take their toll. Shinobu grew weak, her body struggling against the lingering effects. Aoi treated her daily, insisting she rest in bed until her strength returned. Any time she needed help, water, food, walking to the bathroom, she’d call for Aoi, Kanao, or the three little girls who adored her.

Days passed. Shinobu began to recover slightly, though she remained unable to walk. You stayed by her side, refusing to leave. You held her hand through the worst of the fever, changed her bandages, whispered stories from the battlefield, and reminded her of everything they had survived together. One afternoon, as sunlight filtered through the window and painted golden streaks across the room, Shinobu opened her eyes and reached out weakly.

“Hey... idiot,” she murmured, voice barely a whisper. “Still here?”