Tracklist

CD1	Proof	5:33
CD2	No Vain	6:01
CD3	Proof (Instrumental)	5:33
CD4	No Vain (Instrumental)	5:59
DVD1	No Vain (Promotional Video)	5:59

Credits

• Arranged By – 高瀬一矢*
• Composed By – 高瀬一矢*
• Lyrics By – Mell (tracks: 1, 2)
• Producer – Geneon Entertainment, I've
• Vocals – Mell

Notes

Proof is the ending theme for the anime Hayate no Gotoku.
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