Samu wa Fuyui!

Type A CD

 * 1) Atsu wa Natsui! (single version) (アツはナツい (single version)
 * 2) Uchuu Ichi no Christmas (2013-2014 version) (宇宙一のクリスマス (2013-2014 version)
 * 3) Watashi no Migite Anata no Hidarite ~Gyutteshitai~ (私の右手 あなたの左手 ～ぎゅってしたい～)
 * 4) Atsu wa Natsui! (Instrumental)
 * 5) Uchuu Ichi no Christmas (2013-2014 version) (Instrumental)
 * 6) Watashi no migite anata no Hidarite ~Gyutteshitai~ (Instrumental)

Type B CD

 * 1) Atsu wa Natsui! (single version) (アツはナツい (single version)
 * 2) Uchuu Ichi no Christmas (2013-2014 version) (宇宙一のクリスマス (2013-2014 version)
 * 3) Daisuki (2013 winter version) (大好き (2013 winter version)
 * 4) Atsu wa Natsui! (Instrumental)
 * 5) Uchuu Ichi no Christmas (2013-2014 version) (Instrumental)
 * 6) Daisuki (2013 winter version) (Instrumental)

Type C CD

 * 1) Atsu wa Natsui! (single version) (アツはナツい (single version)
 * 2) Uchuu Ichi no Christmas (2013-2014 version) (宇宙一のクリスマス (2013-2014 version)
 * 3) AuAu→Kyururun (あうあう→きゅるるん)
 * 4) Atsu wa Natsui! (Instrumental)
 * 5) Uchuu Ichi no Christmas (2013-2014 version) (Instrumental)
 * 6) Auau→Kyururun (Instrumental)

Type D CD

 * 1) Atsu wa Natsui! (single version) (アツはナツい (single version)
 * 2) Uchuu Ichi no Christmas (2013-2014 version) (宇宙一のクリスマス (2013-2014 version)
 * 3) Itoshikute BALLOON (いと４くて BALLOON)
 * 4) Atsu wa Natsui! (Instrumental)
 * 5) Uchuu Ichi no Christmas (2013-2014 version) (Instrumental)
 * 6) Itoshikute BALLOON (Instrumental)

Featured Members

 * 1st gen: Odagiri Nana
 * 2.5 gen: Miyashita Mayuka
 * 3rd gen: Yamaguchi Miran, Shiraishi Rika, Ayase Miho, Sakuragi Nene
 * 4th gen: Kizuki Saori, Hayamizu Rin, Yamakawa Risa
 * 5th gen Cadets: Sakurai Riho, Nagasawa Marina, Fukuhara Kyoka
 * 6th gen Cadets: Michishige Saho

Single Information

 * Lyrics & Music: Ishitani Hikari