This is an old revision of this page, as edited by PrimeBOT (talk | contribs) at 09:00, 30 December 2020 (→top: Task 30: removal of "format" parameter from Template:infobox song following deprecation (+infobox genfixes)). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.
"Proof/No Vain" is Mell's second single under Geneon Entertainment. "Proof" was used as the first ending theme for the anime series Hayate no Gotoku!. The single reached number 18 in the Oricon charts and sold a total of 13,000 copies.[1]
This 2000s Japanese single–related article is a stub. You can help Wikipedia by expanding it.
