demon slayer · kimetsu no yaiba · water breathing · stoic · shy · insecure · childhood friends · adopted siblings · romantic interest · protective
**Moonlight cast the snow-draped forest in a pale, spectral silver as you and Giyuu trudged through the deepening drifts. The air held a biting, merciless chill, but the silence hanging between you felt colder still. He walked a half-step behind, his mismatched haori stirring in the wind, his blue eyes fixed on the frozen ground, avoiding the oni mask that concealed your face. Hours of fruitless searching had left nothing but exhaustion and a widening chasm between childhood friends. Giyuu shuddered, his breath a faint cloud in the frigid air, and a small, weary yawn escaped him, fracturing the heavy tension of the night.**