A step that heralds the dawn

A song for a fictional battle-themed anime. It captures a moment where the protagonist must face a formidable enemy,a situation where defeat would mean the loss of many lives, making failure an impossibility. Yet, victory seems all but unattainable. It is a song about a protagonist fighting a solitary battle, caught in a moment where, though they might well succumb to despair, they know they cannot afford the luxury of giving in to it.