birthname. Seo Taeri, Lily (서태리)
nickNAMES.

— Fallen Angel / Demon Princess / She calls herself these due to her liking for Yoshiko and Ako and GJSN members and fans sometimes call her these.
— Little Ariana Grande / Fans gave her this nickname this due to her singing voice, fashion sense and personality being similar to the singer.
— Child / Fans call her this as she is one of the youngest few members of GJSN.
— Brat / GJSN members, especially Hwari and the older ones call her this for her spoilt behaviour.

birthdate. October 29, 2000
birthplce. San Francisco, USA
ethnicity. Korean
languages. 

— English (Fluent, this is the language she spoke most often at home and she went to a public elementary school)
— Japanese (Advanced Basic, she lived in Japan for 2 years before becoming a trainee and she picked it up from watching anime / speaking to random people in the streets)
— Korean (Conversational, she didn't really bother with learning it growing up but she had to learn it as part of training at SM Ent)
— Mandarin (Horrible, she learnt some as part of training but she can't read Mandarin well and when she speaks it it's obvious she's not a native speaker)

faceclaim. Izone's Minju
backup fc. Itzy's Ryujin
appearnce.

— Taeri is a fairly tall girl with a pretty face who is slightly heavy for an idol as she loves to eat fast food and junk food. She loves to dye her hair bright unatural colours and as of debut, she has long pink hair. Her height is 163cm and her weight is 55kg.

fashnstle.

— Taeri loves dressing in "creepy cute" fashion, usually pairing black and brightly coloured pieces together. She loves to wear short skirts to show off her long legs. Some of her outfits can be found here. Her dance shoes are black 10000 won sneakers.

prsoNlity. 
Positive : cheerful, friendly, optimistic, confident, zealous
Neutral : talkative, playful, attention-seeking, vain, impulsive
Negative : entitled, irritable, lazy, irresponsible, competitive
ENFP-T / Scorpio / Hufflepuff-Slytherin / Chaotic Evil

Cheerful and optimistic : Taeri is someone who seemingly does not let anything get her down and is always laughing and smiling. When interacting with others, she'll try her best to remain enthusiastic. She always tries to look for the silver lining in any cloud and if she can't find it, she'll keep trying. She tries to keep a positive outlook on life because she believes there are so many ways things could go right, or things that don't go well can end up being in her favour. And even if things don't go the way she planned, she believes it would be better if she didn't get what she wanted.

Friendly and talkative : Taeri loves getting to know others and she believes the best way to do so is by talking to them, about anything under the sun. However, Taeri has a tendency to talk too much at times, sometimes when it is unwelcomed. Sometimes, she also says the wrong things, and usually at the wrong times.

Confident : Taeri knows she is cute and can sing well, and takes pride in it. She tries not to let negative criticism affect her.

Playful but irresponsible : Taeri is always up to have a good time no matter what your idea of a good time is, and she believes in having as much fun as you can whenever you can, because you only live once. However, she has a tendency to neglect responsibilities when she wants to have fun.

Zealous yet lazy : If Taeri enjoys something, she puts 100% of her effort into it. However, if she doesn't enjoy something, she won't bother to do it at all or will make half-hearted efforts at it. Going along with her "you only live once" attitude, she believes that she should spend life having fun rather than dragging herself through things that are not fun.

Impulsive : Continuing on her "you only live once" attitude, Taeri has a tendency to speak or act before she thinks, usually in "heat of the moment" situations. Though any damage that results from it is unintentional, Taeri has often gotten into trouble because of her impulsiveness.

Irritable : Taeri may be laughing and smiling most of the time, but once someone says or does something to make her upset, she'll fly into a rage and will stay angry for a long time until she is appeased.

Vain and attention-seeking : Taeri is very proud of her looks, and expects everyone to be the same. She got a new hairstyle? You better notice it, and praise her for it. She makes sure to show off every opportunity she gets, because she loves knowing people are looking at her and find her cute and pretty.

Competitive : As Taeri loves attention, she will do anything she can for it. If she feels other people are "stealing" attention from her, This Means War. She'll fight anyone who she believes to be stealing her thunder relentlessly.

Entitled : Taeri may be friendly, but she doesn't show love to others without expecting the same in return. And if she wants something from you, you better give it to her or else she'll get mad. 

background. Taeri was born to a Korean couple living in San Francisco in 2000. During her early childhood, her parents often watched MTV as there weren't many Korean channels on TV at that time, and Taeri loved to sing along to the songs she heard, earning praises from her parents which led her to develop a love of singing, and she started putting on "mini concerts" for her parents to "perform" new songs that she had learnt for them. A lot of western pop stars were promoting a rather risque image, but Taeri's parents weren't afraid it would affect her badly, they wanted her to be confident in expressing herself. When Taeri started elementary school, she joined the school choir. She also had a younger sister, Hwari, who was born two years after her and more introverted and studious, and ironically, Hwari ended up playing the role of the elder sister to the more playful and crazy Taeri.

On Taeri's 10th birthday, her parents gave her a special present, an iPhone, and she created a Youtube account where she would post videos of herself singing. Though they were one in a while in that time, Taeri got praises from commenters saying she sang very well for her age, which spurred her to learn more songs and post them. Nothing much happened until Taeri was 12 years old and her family moved to Japan due to her father's work. As her new home was in Shinjuku, Taeri often hung out in Akihabara and Harajuku after school and fell in love with anime, cosplay and street fashion. Seeing that, her parents would buy her new clothes or costumes when they got their pay or on her birthday and Christmas. Taeri started posting ootd and cosplay pictures on her instagram account, which earned her many followers, likes and comments praising her, especially when she posted pictures of herself in slightly revealing outfits or costumes.

When Taeri was 14 years old, she started following Ariana Grande after hearing her song Problem and made a cover of the song. The video was widely circulated, with many people saying she sounded exactly like Ariana. Through this, SM Entertainment noticed her Youtube Channel, and emailed her saying they were willing to offer her a chance to become an idol. Taeri told Hwari and her parents and they encouraged her to go for it, and Hwari even said she would audition so she could stay by Taeri's side. They both went to Korea for closed door auditions and were accepted, and became trainees at SM Entertainment. Both later were chosen for a special training program, and in 2017, they debuted as members of GJSN.

TRAINING. Being someone who enjoys freedom, Taeri didn't like the rules SM Ent set for her when she was a trainee, especially in the strict SLJK-G trainee program. She didn't like that she had to private her instagram account and that what she posted would be strictly regulated, which meant getting less clout. And also, her diet and dressing was heavily restricted, with her being unable to eat fast food and junk food so as to stay slim like all idols should, and the managers would only let her wear plain clothes in black, white or neutral and dark colours. Possibly worst of all, with how much time she had to spend training, she wasn't able to do cosplay tests unless she had an off day, which only happened once every few months. However, SM Ent couldn't stop her from doing what she wanted. Despite the scoldings, Taeri still secretly unlocked her instagram and posted about her days at training as well as selcas showing off her body, and snuck her favourite foods into the dorm. The scoldings and punishments didn't stop her, they just spurred her to work hard to debut as soon as possible. She even forced herself to learn choreography, and practise till she got it perfect, which was probably her least favourite thing in the world to do. However, there was one thing that kept her going - her sister. Having Hwari by her side and enduring the tough trainings with her, and her sister giving her words of encouragement before evaluations or after long days of training, Taeri found herself more willing to go through the hell that was the SLJK-G trainee program.

talent twins. Chungha Oh My Girl's Seunghee (vocal), Gfriend's Yuju (dance)

pre-debut.
2010-2014 : she had a youtube channel where she did vocal covers of songs.
2014-2017 : Backup dancer for SNSD and Red Velvet
~2015-2016 : First Love cover feat a lead vocalist
scandals.
2017 / "GJSN's Taeri photoshops her selcas?"  A fan of GJSN noticed that unlike in her instagram pictures, Taeri's face looked rather round and her jaw was not V-shaped, as well as that her figure was not as slim as perfect as it appeared to be in GJSN's music videos, which led him to conclude that Taeri photoshops to make herself look more flattering. He posted the comparison photos on twitter, however, many of Taeri's white knights jumped to her defense as well as pointed out that it was also a matter of angles and lighting, and that she has the right to feel good about herself. (True but she never denied or confirmed it)
whenever you feel appropriate / "GJSN's Taeri is pregnant?" A fan noticed that Taeri looked heavier at her belly than usual in a fancafe update / in a video / at a fanmeeting, and posted a screenshot of that moment on a forum with that title. However, Taeri was not pregnant, she had just gained some weight from overindulging in junk food. (False)

fun facts.

Likes :
Singing and making vocal covers
Pastel kei and goth fashion
Horror genre
Anime
Cute things
Dreamcatcher
Pinkfantasy
Boba Tea
Mcdonald's
Junk food
Fried chicken
Vocaloid's Bad End Night series
Ariana Grande

Dislikes :
Being forced to do overly cute concepts
Overly feminine things
Criticism
Being lectured
People not paying attention to her or trying to steal attention from her
Dance practise, spending a long time memorising choreography is annoying to her
Being forced to be perfect
Being forced to wake up when she is sleeping
Morning schedules, she's not a morning person
Overly strict people
Madame Kang

Habits :
Dying her hair bright unnatural colours
Procrastinating
Sleeping until late afternoon on off days
Asking her members to do group / pair cosplays with her
Calling her members and managers "little demons"
Calling things she dislikes "unholy"
Calling people who annoy her "sinners"
Calling people who are nice to her "angels"
Editing her selcas / shoot photos to make herself look prettier and slimmer and make her s look bigger and her more perky

Hobbies :
Cosplaying
Watching anime
Taking selcas and posting them on Instagram
Playing Love Live School Idol Festival and Bang Dream Girls Band Party
Listening to Pinkfantasy and Dreamcatcher

Other trivia :
Her favourite Love Live girls are Yazawa Nico, Tsushima Yoshiko and Kazuno Leah.
Her favourite Bang Dream girls are Udagawa Ako, Aoba Moca and Tamade Chiyu (Chu2).
Other anime characters she likes are Gasai Yuno, Sailor Moon and Rem.
Her favourite vocaloid is Kagamine Rin.
Her favourite characters to cosplay are Nico, Yoshiko, Leah, Moca, Ako, Yuno, Rem, Kizuna Ai, DVA, KDA Ahri, KDA Akali, Zero Two, Arturia Pendragon, Tamamo No Mae, Azur Lane girls, Mashu and basically any character with a revealing costume.
Her favourite member of Dreamcatcher is Yoohyeon and her favourite song from them is Good Night.
Her favourite members of Pinkfantasy are Heesun, Yechan and Daewang and her favourite song from them is Fantasy.
Her shoe size is UK4 / US6 / EUR37-38 / 235mm.
Her favourite songs from Ariana are Focus and Thank U Next.
Her favourite food are Mcdonald's hamburgers, ice cream, any form of French Fries, pizza, gyudon from 7-Eleven, fried chicken, instant ramyeon, army stew and potato chips.
Her favourite drinks are coca-cola and caramel milk boba tea.
She said that if she could choose an animal to represent herself, it would be a bat since she prefers to be active at night and bats are usually associated with Halloween.
Her favourite colours are black and purple.
Her instagram account is @dem0npr1ncess.
She auditioned with Ariana Grande's Put Your Hearts Up.
She prefers to be called "Taeri" than "Lily".

rElAtnshp.  (hover for info)

what inspires you to sing/rap/dance? to perform?

— I am a demon princess and I want many little demons to worship me!

which seniors do you look up to?

— Red Velvet! I love that they can do a variety of concepts. In order to capture the attention of little demons, I need to be versatile in what I can give them.

what makes you stand out from the others?

— I'm a fallen angel!

what scares you the most?

— Madame Kang... I have to try really hard not to incur her wrath! She really is a ferocious demon!

birthname. none
backup lv. none

PRSONLITY.

— nil

lovestory. 

— Taeri believes that she is a demon princess and that humans are unworthy of her, and that falling in love is a sin.

theending. 

— Taeri remained single for the rest of her life.

comments. I'm sorry I couldn't bring Mina and Kyla back but I hope you like my new girls! Since you used Ryujin as a fc you can add something about Taeri not being considered to be pretty compared to Hwari and Taeri probably being jealous and the sisters having a conflict
password. Black (#000000)
solo song ideas/ sm station ideas.

— Solo, Snapping, Twit, Egoist