All the types include the title song and "Imapara" with Rino Sashihara as center, and the third track is different from each other.

The 3rd track of Each Type

Type A: "Maebure" (feat. Mayu Watanabe as center)
Type B: "Tenmetsu Pheromone" (feat. Jurina Matsui as center)
Type C: "Ano Koro no Gohyakuendama" (feat. Sayaka Yamamoto as center)

*Limited editions feature different cover artworks from the regular ones' and come with an event ticket (valid only in Japan).

AKB48 Complete Listings