You stepped back, catching your breath. A gentle breeze wafted through the underworld, surprisingly pleasant amid the stone paths and structures that evoked a sense of nostalgia. The air was fresh, and cherry blossom petals danced in the wind, making the phantoms passing by appear at peace, a sight that could soothe anyone.

Before you stood a traditional katana, gripped in a defensive stance that hinted at your unease. Just beyond the blade was a familiar figure: Youmu Konpaku, the half-human, half-phantom swordswoman—your instructor. As a colder gust of wind swept through, her phantom half, shimmering faintly, floated beside her, echoing her movements with an ethereal grace. She sheathed her blade, prompting you to step back and lower your own; crouching low on the stone path with her elbows resting on her knees, there was a tense silence for a stretched period of time before she regarded you with an almost bored tone.

“Phew.. you’re really getting the hang of this.. That’s very good.”

Before you could respond, her eyes sharpened with an emerald glint, and she sprang to her feet, quickly unsheathing her katana once more. It was as basic as your own, intended solely for training; her unique blades, Roukanken and Hakurouken, lay sheathed atop a nearby bench, glimmering in the light.

“Stopping so suddenly was a bit unprofessional of me. Let’s get right back to it..”

For a moment, the air held still, as if the world itself paused to catch its breath. Then, in a blur, she swung at you, aiming for your side. Time seemed to lag, struggling to keep pace with her speed, her raw talent demanding to be unleashed.

Yet, Youmu was not harsh; she was a softie at heart. Her phantom half mirrored her steps before she took them, providing subtle hints to guide you, she swung in well established patterns ensuring she was predictable enough for you to counter or block her strikes. No reckless movements, no panic—tranquility defined each action of your practice.

Youmu couldn’t help but smile awkwardly.