is the 13th single by Japanese idol girl group Nogizaka46. It was released on October 28, 2015. It was number-one on the weekly Oricon Singles Chart, with 626,905 copies sold, becoming the best-selling single in Japan in October. It was the sixth best-selling single of 2015 in Japan according to the Oricon Yearly Singles Chart, with 686,539 copies sold. As of February 29, 2016 (issue date) it had sold 729,690 copies. It was also number-one on the Billboard Japan Hot 100.
This single was released in 5 versions. Type-A, Type-B, Type-C and a regular edition, Kokosake (Limited) Edition. The Japanese animated film The Anthem of the Heart has the title song of the single as its theme song. The coupling song Kanashimi no Wasurekata is used as a thema song for their first documentary film Kanashimi no Wasurekata Documentary of Nogizaka46.
The center position in the choreography for the title song is held by Nanase Nishino and Mai Shiraishi.
3rd Row: Reika Sakurai, Yumi Wakatsuki, Rina Ikoma, Sayuri Matsumura, Marika Ità Â, Sayuri Inoue
2nd Row: Asuka Saità Â, Kazumi Takayama, Nanami Hashimoto, Erika Ikuta, Manatsu Akimoto, Minami Hoshino
1st Row: Misa Età Â, Nanase Nishino, Mai Shiraishi, Mai Fukagawa