Anata ni Deawanakereba ~Kasetsutouka~ / Hoshikuzu Venus

 is the fourth single by Aimer.

CD

 * 1) Anata ni Deawanakereba ~Natsu Yuki Fuyu Hana~ (あなたに出会わなければ~夏雪冬花~)
 * 2) Hoshikuzu Venus (星屑ビーナス)
 * 3) Breaking Up Is Hard To Do

Anime Edition CD

 * 1) Anata ni Deawanakereba ~Natsu Yuki Fuyu Hana~ (あなたに出会わなければ~夏雪冬花~)
 * 2) Hoshikuzu Venus (星屑ビーナス)
 * 3) Breaking Up Is Hard To Do
 * 4) Anata ni Deawanakereba ~Natsu Yuki Fuyu Hana~ (あなたに出会わなければ~夏雪冬花~) (TV Size)

Limited Edition DVD

 * 1) Aimer Premier Live (2012.06.08 DIGEST)
 * 2) Sabishikute Nemurenai Yoru wa (from Live at anywhere Vol.10)
 * 3) TV Anime "Natsu Yuki Rendezvous" Non-credit Ending