A song that I believe suits the oath of the Demon Slayer Corps.

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Gemini Badge

To mend the broken, make the wounded whole

And swear to fight beneath the moon and stars

We pledge our lives, our breath, our might

Our blades will strike, unwavering still.

Through blood and tears, through doubt and fear

For those who suffer, for those who sleep

Who fought this battle and asked for more

We'll break the chains, we'll end the pain

Our blades will strike, unwavering still!Our breath techniques, our sharpened will