Shida Summer Arai Summer!

 was a collaboration group featuring Arai Hitomi and Shida Yuumi. The group was only active in summer 2016.

Members

 * Arai Hitomi
 * Shida Yuumi

Singles

 * [2016.07.06] Shakunetsu Summer ~SUMMER KING × SUMMER QUEEN~ (灼熱サマー ～SUMMER KING × SUMMER QUEEN～)
 * [2016.08.10] Anna ni Suki Datta Summer / GO GO Summer! (あんなに好きだったサマー / GO GO サマー!)