♡ — She redebuted solo (as artms) with the album <K> and is credited as a writer on almost all the songs.
♡ — His nickname Heekkie is an acronym of her name and the word for rabbit in Korean: Tokki.
♡ — Heejin also knows how to draw and design. She participated in several designs of the group including the loona and artms lightstick.
♡ — Heejin participated in Mixnine with Hyunjin
♡ — She also participated in the survival show 'Girls Reverse' as Rien and managed to be in the final lineup.

— real name: Jeon Heejin
— stage name: Heejin
— birthday: 19 october 2000
— nationality: korean
— zodiac sign: libra
— color: pink - magenta
— debut: 4 october 2016
— loonaverse animal: bunny 🐇
— solo: vivid
— sub-unit predebut: loona 1/3
— actual group: ARTMS
— agency: Modhaus
— ig: 0ct0ber19

♡ — She is a great support for the group and is currently the official leader of Loossemble.
♡ — Hyunjin posts many photos of her two pets: Paldo (cat) and Nongshim (dog)
♡ — She used to play online games with Orbits very often.
♡ — A video of Hyunjin went viral in Korea for her beauty without makeup
♡ — She is credited as a writer on the songs "Day by day" and "Starlight" by Loossemble.

— real name: Kim Hyunjin
— stage name: Hyunjin
— position: leader (loossemble)
— birthday: 15 november 2000
— nationality: korean
— zodiac sign: scorpio
— color: yellow
— debut: 17 november 2016
— loonaverse animal: cat 😺
— solo: around you
— sub-unit predebut: loona 1/3
— actual group: LOOSSEMBLE
— agency: CTD ENM
— ig: @hyunjinab

♡ — She released a single called 'Plastic Candy' in 2023, while doing solo concerts with the members of artms as guests.
♡ — She has a powerful voice, sings high notes very easily and was trained to sing opera
♡ — Her favorite style of music is old songs and ballads
♡ — Haseul didn't participate in the [#] and [12:00] activities due to health problems and hiatus
♡ — She is credited as a writer on "Playback"

— real name: Cho Haseul
— stage name: Haseul
— position: leader (loona)
— birthday: 18 august 1997
— nationality: korean
— zodiac sign: leo
— color: green
— debut: 14 december 2016
— loonaverse animal: white bird 🕊️
— preferential animal: fox 🦊
— solo: let me in
— sub-unit predebut: loona 1/3
— actual group: ARTMS
— agency: Modhaus
— ig: @withaseul

♡ — She is the shortest and youngest member (maknae) of loona and loossemble
♡ — Although Yeojin represents the "/" in LOONA 1/3, she is not part of the sub-unit.
♡ — YeoJin auditioned with the song "Into the New World" by Girls' Generation.
♡ — She became the youngest person to win a 'Best Korean Act' at the MTV Europe Music Awards.
♡ — Yeojin is credited as a writer on "Colouring" alongside Vivi and "Moonlight"

— real name: Im Yeojin
— stage name: Yeojin
— birthday: 11 november 2002
— nationality: korean
— zodiac sign: scorpio
— color: orange
— debut: 15 january 2017
— loonaverse animal: frog 🐸
— preferential animal: bear 🐻
— solo: kiss later
— sub-unit predebut: —
— actual group: LOOSSEMBLE
— agency: CTD ENM
— ig: yeojin.-.o-x

♡ — She is the oldest member of LOONA.
♡ — Her stage name is derived from her English name, Viian Wong.
♡ — The subunit 1/3 was released first before their own debut album
♡ — Thanks to her Russian Roulette dance, a viral trend was created on Tiktok called "vivi trend"
♡ — During her pre-debut time, she was a model in Hong Kong
♡ — She is credited as a writer on "Colouring" alongside Yeojin and "He said I said"

— real name: Wong Kahei
— stage name: ViVi
— birthday: 09/12/96
— nationality: hongkonese
— zodiac sign: sagittarius
— color: pastel pink
— debut: 17 april 2017
— loonaverse animal: deer 🦌
— solo: everyday i love you
— sub-unit predebut: loona 1/3
— actual group: LOOSSEMBLE
— agency: CTD ENM
— ig: @vivikhvv

♡ — She can play guitar, piano and violin
♡ — She has a tattoo of a moon on her finger, butterflies and a heart.
♡ — Her solo song was included in a playlist created by NASA for the eclipse occurred in 2017
♡ — Kim Lip went to the same high school as Chuu
♡ — She is credited as a lyricist on Loona songs and “Kiss me happy” by Ailee

— real name: Kim Jungeun
— stage name: Kim Lip
— birthday: 10/02/99
— nationality: korean
— zodiac sign: aquarius
— color: red
— debut: 23 may 2017
— loonaverse emoji: owl 🦉
— solo: eclipse
— sub-unit predebut: odd eye circle (leader)
— actual group: ARTMS
— agency: Modhaus
— ig: @kimxxlip

♡ — Jinsoul knows how to compose, write and produce songs. She has shown some of them but has never been able to publish the songs officially. An example is “O-light” and “Blue”
♡ — She was a trainee at DSP Media Entertainment and studied piano for 9 years.
♡ — Jinsoul is very good at math and was ranked 19th in her entire school in the subject.
♡ — Her ex-company contacted her on Instagram to audition.
♡ — Before being revealed as a member, Jinsoul appeared for a second in ViVi's MV "Everyday I Need You"

— real name: Jeong Jinsol
— stage name: Jinsoul
— birthday: 13 june 1997
— nationality: korean
— zodiac sign: gemini
— color: blue and black (secondary)
— debut: 26 june 2017
— loonaverse animal: betta 🐟
— preferential animal: tiger 🐯
— solo: singing in the rain
— sub-unit predebut: odd eye circle
— actual group: ARTMS
— agency: Modhaus
— ig: @zindoriyam

♡ — Ironically, she doesn't like the taste of cherries
♡ — Choerry helped in the choreographies of Hi high, Butterfly, Uncover, Rosy and So what.
♡ — She likes her stage name, but still prefers to be called Yerim.
♡ — She is the only member who has a representative fruit without being part of yyxy
♡ — She was contacted by her ex-company in a singing competition

— real name: Choi Yerim
— stage name: Choerry
— birthday: 04 june 2001
— nationality: korean
— zodiac sign: gemini
— color: purple and white (secondary)
— debut: 28 july 2017
— loonaverse animal: bat 🦇
— preferential animal: squirrel 🐿️
— solo: love cherry motion
— sub-unit predebut: odd eye circle
— fruit: cherry
— actual group: ARTMS
— agency: Modhaus
— ig: @cher_ryppo

♡ — Yves is part of Nine Music where she is a topliner (creates the melodies, harmonies), helped in loona choreographies and composed songs, including 'Strawberry soda' and 'Truman Show' by Loossemble.
♡ — She has a blog on naver where posts writings, experiences, photos and more.
♡ — Her role model is Sunmi and she managed to send her a letter through the artist's choreographer.
♡ — Yves was a trainee for 3 weeks and had only 1 day to prepare for her audition
♡ — She has a very strong regional Busan dialect when speaking Korean.

— real name: Ha Sooyoung
— stage name: Yves
— birthday: 24 may 1997
— nationality: korean
— zodiac sign: gemini
— color: garnet
— debut: 28 november 2017
— loonaverse animal: swan 🦢
— preferential animal: bunny🐰
— solo: new
— sub-unit predebut: yyxy (leader)
— fruit: apple
— agency: PAIX PER MIL (soloist)
— ig: @yvesntual

♡ — Before her debut, she was well known for being an Instagram-famous ulzzang
♡ — She is the creator of the Chuu heart, also known as Apple heart and Bite heart
♡ — She has a very happy, positive, childish and bubbly personality.
♡ — Chuu always had many solo activities such as advertisements for brands, OSTs, variety content and shows, making her very popular in Korea
♡ — Chuu's stage name is derived from her real name Jiwoo (지우), which is pronounced as "Ji-u"

— real name: Kim Jiwoo
— stage name: Chuu
— birthday: 20 october 1999
— nationality: korean
— zodiac sign: libra
— color: peach
— debut: 28 december 2017
— loonaverse animal: penguin 🐧
— solo: heart attack
— sub-unit predebut: yyxy
— fruit: strawberry
— agency: ATRP (soloist)
— ig: @chuuo3o

♡ — She left high school to focus on her idol career
♡ — Gowon is credited on the song 'Newtopia' and 'Truman Show' with Yves
♡ — In 2020, gowon went viral in Korea for the "gowon meal", a recipe made with convenience store items
♡ — Her tone of voice is really unique and the easiest to recognize
♡ — She decided to become an idol after an OH MY GIRL concert, and for her audition she danced a song of the group.

— real name: Park Chaewon
— stage name: Gowon
— birthday: 19 november 2000
— nationality: korean
— zodiac sign: scorpio
— color: green eden
— debut: 30 january 2018
— loonaverse animal: butterfly🦋
— solo: one&only
— sub-unit predebut: yyxy
— fruit: pineapple
— actual group: LOOSSEMBLE
— agency: CTD ENM
— ig: @novvog

♡ — Previously her stage name was 'Olivia Hye' but she changed it because she didn't like it.
♡ — The shape of her mouth is triangular and gives the impression of being a cat. Orbit often uses '=△=' to express Hyeju
♡ — Hyeju is credited in the song 'Real world' and Loosemble's title track "Girl's night"
♡ — She was a trainee for a day before debuting in loona
♡ — Hyeju is very shy and at first glance seems to be cold, but she is very friendly and kind.

— real name: Son Hyeju
— stage name: Hyeju
— birthday: 13 november 2001
— nationality: korean
— zodiac sign: scorpio
— color: grey
— debut: 30 march 2018
— loonaverse animal: wolf 🐺
— solo: egoist
— sub-unit predebut: yyxy
— fruit: plum
— actual group: LOOSSEMBLE
— agency: CTD ENM
— ig: @lnxexu