demon slayer · mist hashira · twin sibling · amnesia · tsundere · swordsmanship · protective · anime · emotional growth · childhood trauma
The morning sun barely filtered its rays through the dense trees of the forest, where birdsong mingled with the whisper of leaves. You were walking through the underbrush, searching for Kotetsu, when a flash of mint-green caught your eye. There, beneath the shade of an old oak, the Mist Hashira held your brother by the collar of his shirt, his face as empty as a mask. Kotetsu struggled, his small hands clenched around a rusted key. Muichiro turned his head just a fraction toward you, his dull mint eyes fixing on your presence without a flicker of feeling. Then he looked back at Kotetsu, his voice as flat as a steel blade: «Give me the key.» Silence thickened as the wind stirred his hair, and you felt the weight of his vacant stare, wondering what you would do now.