The Secrets We Keep - Hoshina Soshiro Fanfiction

The Sacrifice of a Sister

Standing tall and exhausted outside the Defense Force base, after four relentless years of training. My body battered, my lungs burning with blood, countless times vomiting blood from the harsh training.

Sleep and rest merely distant memories. Me and my sister stand here today, the test of our capability and worthiness.

I felt confident, convinced that my years of hard work and determination would pay off. But instead, reality hit me like a cold, hard blow.

Attacked by a Kaiju, I lost consciousness. My sister saved the day, killing all the Kaiju herself, while I did nothing. Father was furious, seething with anger.

Father's fury knew no bounds. The punishment that followed was relentless – a crushing weight of disappointment and pain that I couldn't escape.

Each day brought another round of discipline, his anger fueling his actions. The suffering seemed endless, a never-ending cycle that left me feeling small and helpless.

"Why can't you be like your sister?!"

The same question that he asked me over and over everyday. I'm sick of it. I'm sick of his obsession over talented people.

A year after the devastating events, I managed to get selected for the Defense Force, just like my sister.

The Second Division, a prestigious unit, welcomed us with open arms. With the Mitsuko family name carrying weight and our young age garnering respect and trust, the expectations were high.

But I knew deep down that all the faith and respect weren't truly meant for me – it was all for my exceptional sister.

I accepted the role of Vice Captain, a badge of honor. Being one of the youngest to reach such a high rank was something to be proud of, despite knowing that the respect and glory were primarily directed at my sister.

Life became hectic as we fought to save people day after day. With work piling up, sleep and rest were luxuries that remained out of reach. Overtime became a daily routine, weighing heavily on us as we juggled the immense responsibility of keeping the country safe.

One day.. Rei asked me to have a late night walk with her. Talking about things,to rest our mind off. As we walked together, a gentle snow falling around us, my sister's voice cut through the cold air.

"You're still so young.. yet you have to shoulder up the burden that adults should be dealing with.." she murmured quietly. The weight of her words settled heavily on my shoulders as I tried to remain composed.

I tried to brush off her concern with false bravado, insisting that I was okay. "It's alright," I said, attempting to sound strong.

"You're the one who's in a hard space, carrying the weight of everyone's expectations. You're young too, Rei." Deep down, I worried about her giving nature, knowing she might exhaust herself trying to help everyone.

My voice came out as a gentle nag, worried for her tendency to be too kind. "You need to set some limits," I told her gently.

Her laughter followed, warm and soft, as she remarked, "It's almost like you're older than me." The sound of her laugh filled the crisp air, banishing the coldness and replacing it with a sense of comfort and care.

My gaze softened as I looked at her, the concern in my eyes apparent. "I'm being serious," I emphasized, my voice firm. "No matter what happens in the heat of battle, if we find ourselves in a dangerous situation, prioritize yourself first and foremost."

"Your safety matters more than anything to me. Don't die on me."

"I promise"

She reassured me with a soft chuckle, promising to prioritize her own safety. But her words turned out to be empty as the battle with Kaiju no.7 unfolded.

I watched in horror as the monster ruthlessly cracked her limbs, tearing them apart, leaving them unconnected to her body. My scream echoed through the battlefield, a mix of anger, sadness, and hatred overwhelming me as I witnessed her sacrifice.

My anguished cry filled the air, my voice cracking with emotion as I could only utter her name in my moment of despair. "Rei!" I cried out, my heart breaking as I watched my loved one suffer such a brutal end.

In my fit of rage, I flung myself at the Kaiju, fighting with everything I had, but it was no use. Its sheer strength overpowered me, and I failed in my attempt to avenge her.

Following my sister's funeral, the entire nation mourned for her loss. Her heroic sacrifice had earned her a proper salute and farewell. But the aftermath hit our division hard. Morale plummeted, and the weight of grief and sadness hung heavily over us.

But I couldn't bear to stay. I needed to get away, to be alone, to grieve and process the pain and anger that consumed me. So, I vanished without leaving a trace, seeking solitude in my despair.

I was completely alone, the weight of grief and guilt crushing my heart. I replayed the events in my mind mercilessly, tormenting myself with the thought that if I had only trained harder, if I had mastered the techniques, then she wouldn't have had to sacrifice herself to save me. The guilt and anger consumed me, isolating me further and making the loneliness even more unbearable.

That's when I found a note, I don't know where it came from but it wouldn't hurt if I read it right?

I opened the note only to found:

"Dear my lovely sister, this is your sister,Rei. I've been writing this for such a long time now. Ever since I watched papa, treating you badly, I couldn't help but feel sad and guilty for it. I'm sorry Suori. I've been a very bad sister for you. I'm supposed to protect you but I couldn't do it. I believe that you're much stronger than me. You may born with small body but your muscles can easily build. You're smart, I love it when you're talking logically to me. It's funny because I've never wanted to be the one who has to protect the country. I wanted to create my own unit. The Medical Defense Force unit, isn't that sounds cool? Suori,if I died when you read this,please,keep that pretty smile of yours on your face,can you fulfill my dream? Create the Medical Defense Force unit for me,where you take every kids and person who their lives has been in hell, I will always be right by your side. I love you,Suori"

When I read the note, my heart broke all over again. My sister's words filled me with a mix of sadness, love, and guilt. She apologized for any perceived shortcomings as a sister, but praised my strengths and potential.

She expressed her dreams and wishes, asking me to continue smiling and to fulfill her dream of creating the Medical Defense Force unit. I wept, hugging the note tightly, filled with a renewed sense of purpose mixed with profound grief. The words on the page were a bittersweet reminder of her love and presence, even in her absence.

"Rei... I'm sorry.."
The only words that I keep muttering to myself, hoping that she would forgive me.

With a newfound determination and a heart full of bittersweet memories, I approached the higher-ups, ready to make my sister's dream a reality. I shared the story of her sacrifice and her dream to create the Medical Defense Force unit.

To my relief, they agreed to fulfill her dream, recognizing her vision and honor. With the support and resources, I began to build the MDF, dedicating every moment to honoring my sister's memory and fulfilling her dream.

My love for her burns bright within me, an unwavering flame that will never burn out. I will always cherish her memory and the love we shared. Her sacrifice will not be in vain, as I continue to honor her dreams and uphold her legacy in the Medical Defense Force unit.