The First Summer

 is the second major (fourth overall) single by Akishibu Project.

Regular Edition

 * 1) The First Summer
 * 2) Natsu no Kakera (夏のかけら)
 * 3) Kansoku Shijou (観測史上)
 * 4) The First Summer (Instrumental)
 * 5) Natsu no Kakera (夏のかけら) (Instrumental)
 * 6) Kansoku Shijou (観測史上) (Instrumental)

Featured Members

 * Taguchi Miiro
 * Kanno Serina
 * Morishita Kanon
 * Mashiro Riho
 * Fukuyama Rino
 * Kojima Nana
 * Tachibana Hiyori
 * Asami Ayuka
 * Fujiki Mana