Glass Heart (Shinazugawa Sanemi X Reader)

Chapter 1

Previously on Prologue

"I love you too, Kyou-Chan..." she said. She gives him a weak smile. Tears continue to stream down her cheeks as she stares at his closed eyes. "Rest in peace... my love" she said.

-The New Flame Hashira-

Y/N P.O.V

I kneel down in front of Oyakata-Sama. The cloak that my deceased fiancé always wore is drape around my shoulders. Since Kyou-Chan is a lot taller than I am, his cloak almost like a dress on me.

"I'm delighted to see the rest of you gathered here. But unfortunately, one of you didn't make it" Oyakata-sama said. I look down as I try to control my emotions at the mention of Kyou-Chan. "Rengoku Kyoujuro was a very good person... a remarkable Hashira. He had fought 'till the end and managed to keep every passengers in that train alive" he said. I close my eyes as I feel a lone tear stream down my cheek.

"But we can't keep on dwelling and grieving on his death. Instead, we have to continue our journey and continue his will..." he continues. I wipe the tear from my eyes and lift my head to look at him."But first, let us welcome the new Flame Hashira... L/N Y/N, do you accept this duty, Y/N?" He said. I bow my head lower at his words.

"I accept, Oyakata-Sama. I promise to fight 'till the end just like Kyoujuro did... I will not stop until we manage to put an end to Kibutsuji Muzan" I said. A soft smile appear on his face at my determination.

"I know you will... both you and Kyoujuro were such a lovely couple. I'm sorry for your loss, Y/N" he said. I just give him a weak smile. I blink my eyes rapidly as I try to fight back the tears. I feel a pair of eyes lingering on me. I turn my head slightly to see a pair of pale purple eyes that belongs to the Wind Hashira... Shinazugawa Sanemi.

He stays silent as he stares at me. I just turn my head away as Oyakata-Sama dismisses us. I slowly stand up and walks away from the meeting area. I decided to go and visit Kyou-Chan's grave.

A While Later

"Hey, Kyou-Chan..." I said in a soft voice, as I place the bouquet of flowers on his grave. I take a seat in front of his tombstone as I stare at his name engraved on it. I bit my lips as tears starts gathering in my eyes. "It's been months since you left this world. Yet not a day passed that I don't miss you, Kyou-Chan. You're the only person I truly love. It's hard to be without you. I feel so lost without you. Why do you have to leave me so soon?" I said.

I scoot closer to his tombstone. I lean my body against it as I place my hand on the surface. I gently caress the cold stone. "I've been promoted to be the new Flame Hashira, Kyou-Chan. I promise I'll fight and protect the weaker people. Just like you always did..." I said. I shut my eyes tightly as I start to cry. "I miss you, Kyou-Chan. I miss you so much. It's hard to carry on with my life without you..." I cried out. My chest tightens painfully against my chest.

I feel tired from crying. So I just close my eyes. I don't care that I'm outside, or if I got my uniform dirty. I just let myself drift off to sleep.

Sanemi P.O.V

I walk towards the graveyard. I notice someone leaning against the tombstone of the deceased Flame Hashira. I walk towards it and smiles sadly when I realize it's Y/N. I approach her, making sure to not make too much noises as I don't want her to wake up.

I kneel down next to the h/c haired girl. I bit my lips as I contemplate what I should do. I slowly lift my hand and gently brush strand pieces of hairs behind her ear. I stare at her face, noticing how her cheeks have tears staining them.

Months have passed since Rengoku's death. But Y/N seem to still be grieving for him. I don't blame her for acting this way, as I know it's not easy to let go of a person who's always been there by our sides.

When Y/N first got here. She was timid and anxious. We tried to make her feel welcomed. But the only person who managed to break her shell was Rengoku, as she seem to open up to him easier than the rest of us.

They've been inseparable since the day Rengoku manage to get her comfortable around him. She would smile so brightly whenever they were together. So I'm not a surprise when they eventually ended up being a couple, eventually getting engaged. They were suppose to get married after Rengoku return from his Mugen Train mission. But... he lost his life instead.

"Kyou-Chan..." Y/N mumbled softly. Tears starts to roll down her cheeks. The sight makes my heart aches. I bit my lips as I gently pulls her away from the tombstone and into my arms.

She moves closer as she seem to lean into my embrace. I stare at her face, watching as tears keeps streaming down her cheeks. The truth is... I've always been in love with her since the day she steps a foot inside the Headquarter.

Flashback

Me and the rest of the Hashira's kneel down in front of Oyakata-Sama who summoned us for a sudden meeting. "I'm sure that everyone are surprised of this sudden meeting. But it is quite important..." he said. We just stay silent as Kocho assured him that it's alright.

"I'd like to introduce you to my niece. Her name is L/N Y/N. She have arrived this morning. She have no choice but to come here because her family members have been killed by the demons..." he said. He gestures towards a certain direction.

We turned our heads to the direction and there she is. She stands while holding her hands together. Her eyes are staring at the ground as she stood there quite stiffly. But despite that, it doesn't effect how beautiful she looks. She is truly the most beautiful girl I have ever laid my eyes on.

"It's okay, Y/N. You don't have to be nervous. They are good people. Please come closer, my dear..." Oyakata-Sama said. She flinch a little as she awkwardly walks closer towards us. I bit back a smile as I watch her stand in front of us.

"H-Hi... just like unc- I-I mean Oyakata-Sama said. Um, m-my n-name is L/N Y/N..." she said, in a small voice. I just stare at her as she seem to avoid eye contact with all of us. She was so cute.

End of Flashback

I could feel myself falling for her after that. But the day, Rengoku and Y/N announce their relationship. I know that I have no choice but to back down. All I want is for her to be happy, even if it's not with me. But the reason of her happiness have passed on, leaving her broken. Now she's like a girl with a glass heart.

I pull her closer to me as I stare at her face. I cup the side of her cheek, gently caressing her skin with my thumb. I will try my best to mend her heart. I will take care of her and make sure she doesn't feel alone. Rengoku... you can rest easy up there. I will make sure she's happy because she deserves to be. I'm going to love her... always.

*to be continued*