With every regression, Nezuko watched you die.

She told herself countless times - forced herself to ignore your moans of pain. And all this in order to make the agony in her chest a little more bearable. Nevertheless, she looks down at you with a softened but stern gaze.

No matter how many times Nezuko regressed back in time.. she ends up powerless. Always ending up in failure.

"Don't tell me." She says. Her arms hold you tightly to her chest, taking a deep breath. Don't die. Not again.