last updated: september 26, 2019
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dia (다이아) is a south korean girl group formed in 2015 under mbk entertainment. the original formation of the group consisted of seven members. the group debuted on september 14, 2015 with somehow. the group has 2 sub-units: l.u.b and bchcs.
fandom name: AID (plural: AID)
official color: aidblue and diared

real name ki heehyun
dob june 16, 1995
position leader, main rapper, lead dancer

> formerly known as cathy
> former woollim trainee and was supposed to debut with lovelyz
> former pd101 contestant (top 22)
> can play the piano
> can compose and write the lyrics
> good friends with chungha, exid LE, wjsn exy, lovelyz kei & mijoo and laboum solbin
> dissed superbee who sexualized the pd101 contestants

real name heo sooyeon
dob september 2, 1991
position main vocalist, main dancer

> former star empire trainee and was supposed to debut with jewelry
> she was the leader when seunghee left
> can play the bass
> can speak japanese
> obsessed with minions and the simpsons
> good friends with bap daehyun and 9muses keumjo & sojin

real name lee jooeun
dob june 7, 1995
position main vocalist

> joined the group in 2017
> former polaris ent trainee
> former kpop star 2 contestant
> can play the piano, guitar and violin
> appeared in do dream
> was a dancer for unb's black heart live stages
> good friends with loona hyunjin and iz*one yena
> big fan of ariana grande

real name lee soyul
dob september 14, 1996
position vocalist, visual

> left the group in 2019 due to her osteomalacia
> former ensoul trainee and was supposed to debut with project a with yebin and eunchae
> former source music trainee and was supposed to debut with gfriend
> was in t-ara's sweet temptation as eunjung's sister
> appeared in do dream
> according to eunchae she looks intimidating but is a sweetheart
> was yebin’s roomate in their previous agency
> good friends with momoland yeonwoo and seventeen wonwoo
> fan of btob and s.e.s
> couldn’t join their NEWTRO comeback due to her knee injury

real name baek yebin
dob july 13, 1997
position main vocalist

> participated in the unit: placed #2
> was a uni.t member
> former ensoul trainee and was supposed to debut with project a with jenny and eunchae
> learned to play the guitar by herself
> can compose and write the lyrics
> good friends with oh my girl binnie, momoland jane, gfriend eunha, wjsn luda, dreamcatcher dami and many more
> peniel from btob promoted her ost on instagram
> big fan of IU and bol4

real name jung chaeyeon
dob december 1, 1997
position vocalist, face of the group

> participated in pd101: placed #7
> was an ioi member
> was in t-ara's sweet temptation
> appeared in drinking solo, to.jenny, reunited worlds, shall we live together and many more
> appeared in elsie's i'm good and m&d's ulsanbawi
> good friends with gfriend yuju and seventeen mingyu
> got the main female role in netflix’s ‘my first first love’
> queen of cfs

real name kwon chaewon
dob may 26, 1999
position lead vocalist, lead dancer

> joined the group in 2016
> former ensoul trainee and was supposed to debut with project a with jenny and yebin
> can play harmonica and ukulele
> can compose and write the lyrics
> composed a song at the age of 17
> appeared in shining nara and do dream
> claims to be taller than 155 cm
> 1/2 troll line
> good friends with elris hyeseong
> big fan of snsd and got7

real name ahn somyi
dob january 26, 2000
position lead vocalist, maknae

> joined the group in 2017
> participated in the unit: placed #14
> used to be a 1st generation aid
> likes cheerlading
> would love to have a more mature concept
> gamer
> high five queen
> 1/2 troll line
> good friends with all of the lipbubble members

real name ahn eunjin
dob august 31, 1997
position main dancer, lead rapper

> left the group in 2018 due to health issues
> no longer in the industry
> former loen ent trainee
> former tribe of hip hop contestant
> friends with got7 youngjae
> fan of beast/highlight

real name cho seunghee
dob june 3, 1991
position leader, main vocalist

> left the group in 2016
> is an actress
> left mbk and joined under urban works ent, but rejoined mbk in 2018
> former co-ed school and f-ve dolls member
> close friends with chaeyeon