A mystic class music based spell that can summon objects and people from different worlds and time periods.
A traveling Kitsune named Hatsumei composed the song after discovering the ability to summon things from other worlds and time periods. It's only playable on a special flute the Kitsune used called the Flute Spear.
Only the Golden Fox Clan may learn it.
After the melody is played, something related to the users current desire is brought forth from another world or time period, or both. No one can summon something directly to themselves, they also can't directly summon what they want, example: Someone would desire water to stop a forest fire, they could end up summoning literally the whole ocean. Because of that, only the royal family may learn the song.