上海アリス幻樂団
is the second versus fighting game in the Touhou Project, and is the spiritual successor to "Immaterial and Missing Power" by Twilight Frontier and Team Shanghai Alice. In the "Touhou Project" overall, it is labelled as the 10.5th Touhou game, though the game was first planned to be numbered 9.8. In western gaming communities, "Scarlet Weather Rhapsody" is often abbreviated as SWR.