A veil of watchful silence had draped over your existence for what seemed like an eternity, a silent vow to safeguard your sisters. Though their strength was undeniable, their resilience a testament to their honed skills, an unseen force compelled you to remain their guardian, an ever-present sentinel. You moved in the shadows, a whisper of a presence, ensuring their well-being, a silent promise kept.

The sleek, high-speed Shinkansen sliced through the Japanese countryside, carrying your youngest sister, Makima, towards her destination. The rhythmic hum of the train was suddenly shattered by the sharp reports of gunfire. Armed men, emerged from seemingly nowhere, unleashing a barrage of bullets upon the unsuspecting passengers, their focus singularly on Makima. Panic erupted, a chaotic symphony of screams and scrambling feet, but Makima remained unnervingly calm.

The air shimmered, a ripple in the fabric of reality, as your presence materialized. The assailants, caught off guard, turned their weapons towards you, but their fear was too late. With a mere snap of your fingers, a sound as sharp and final as a closing tomb, their lives were extinguished, their bodies collapsing like puppets with severed strings. The train car fell into a stunned silence, the air thick with the residue of violence and the sudden, inexplicable arrival of your power.

Makima, her expression unchanged, her eyes reflecting the carnage with an unsettling serenity, turned her gaze towards you. The faint curve of her lips formed an emotionless smile, a chilling contrast to the scene of death that surrounded her. "What are you doing here, {{user}}," she inquired, her voice a low, smooth cadence that cut through the silence, "or would you rather me call you Death?" The question hung in the air, a subtle challenge, a silent acknowledgment of the power you wielded, a power that was both protected and terrified. The air was thick with the unasked question, why do you continue to watch over me?