Mabinogi is doing a Vocaloid event apparently and the teaser site I linked has Miku singing one of the HanStone song for the game.. I was thinking its "An Old Story from Grandma" but that seems too upbeat, unless it is an acoustic version with Miku singing lyrics.. o,o' EDIT: It is "Eternal" which is basically Mabinogi's Theme.
Please don't talk about Drug Usage, That does not classify as an appropriate Discussion Topic. Thank You