Undertale - Battle against a true hero (lyrical adaptation)

trembling within the breeze, I can feel my soul is shaking
even with a single blow, everything that [bad word] undone
using every ounce of strength, just keep myself from breaking
I can only watch you walk by 

Holding on to everything, even when my body shatters
I will never let you pass even when my [bad word] dry
beating with our hearts as one, everyone I know is praying 
I will strike you down do or die