The girl group "A Train to Autumn" is a Ballad Group under CUBE Entertainment. The girl group consists of 4 members known as "Baek Somi", "Lee Ahnyoung", "Kim Soobin",and "Hwang Jihyun". They were picked from blind audition that was held by Cube. Since CUBE Entertainment just suddenly formed them and made them debut as a ballad group without introducing the girls to the industry, there are little facts about them.
A Train to Autumn official Instagram account --- autumn.train_official
Hwang Jihyun
Name : Hwang Jihyun (황지현)
Probable Position : Leader, Lead Vocalist
Birthdate/Birthday : December 14, 1996
Zodiac Sign : Sagittarius
Facts about Jihyun ---
--- Education: Dongah Institute of Media and Arts (Applied Music, Vocal) ---
--- She featured in Play Kim's digital single "How Nice Would It Be" (얼마나 좋을까) in July 2018. ---
Lee Ahyoung
Name : Lee Ahnyoung
Probable Position: Main Vocal
Birthdate: December 10, 1998
Zodiac Sign: Sagittarius
Facts about Ahnyoung ---
--- Education: Dongah Institute of Media and Arts (Applied Music, Vocal) ---
Kim Soobin
Name : Kim Soobin
Probable Position: Vocal
Birthdate: May 7, 1998
Zodiac Sign: Taurus
Facts about Soobin ---
--- She sounds like PD48's Han Chowon who is also in Cube Ent. ---
--- Because of that, everyone thought she was Chowon when they (we) first heard her voice/the song. ---
Baek Somi
Name: Baek Somi (백소미)
Probable Position: Vocal, Maknae
Birthdate: October 10, 2000
Zodiac Sign: Libra
Facts about Somi ---
--- She has braces ---
NOTE! Since CUBE made them debut without introducing these girls properly to the industry,
I couldn't find many information about them so I'm really sorry if I kinda disappoint you about this.