The SOS Party is a Political Party featured in Idol Jihen. Their theme color is purple.
|Yami Ringo-sama||15||Aomori Prefecture||Member of SMILE ♥ X.|
|Aina Kingetsu||15||Hyōgo Prefecture|
|Jun Aiba||18||Fukui Prefecture||Not featured in the anime.|
|Akiko Oogaki||21||Hiroshima||Not featured in the anime.|
|Villamaine Kosasa||16||Nagasaki Prefecture||Not featured in the anime.|
- This is the only Party featured in Idol Jihen to not have a unit within it.
- The average age of this Party is 17 years.
- The name SOS stands for "Sekai o Ongaku de Sukuu [世界を音楽で救う]" which means "Save the world with music".