Natsu no Tropical Musume. (夏のトロピカル娘。; Summer's Tropical Girl.) is a single released by THE Possible, featuring Hashimoto Aina and Akiyama Yurika. It was released on the same date as their single Kingyo Sukui to Hanabi Taikai. Both singles feature two different members for the title track, and the full group for the B-side. The single reached #58 on the Oricon single chart selling 1,802 copies, and the single V reached #215 on the Oricon DVD chart selling 470 copies. Both charted for one week.