Youth youth by young! Hello, we are LOOΠΔ / yyxy~


yyxy (Hangul: 이달의 소녀 yyxy), stylized as LOOΠΔ/yyxy, is the third and final pre-debut sub-unit of the girl group LOOΠΔ. They debuted with members Yves, Chuu, Go Won and Olivia Hye on May 30, 2018 with the mini-album beauty&thebeat.


The unit's Korean name is pronounced Idalui Sonyeo Wai-wai-bai-wai (Korean: 이달의 소녀 yyxy) from the Sino-Korean root meaning "Girl of the Month", combined with the made-up neanthropic chromosome "yyxy".

Overall ConceptEdit

yyxy is composed of four girls held in a separate dimension called Eden. In love4eva, it's revealed that if they eat their individual Forbidden Fruit, they are expelled from it. They soon feel trapped and adventurous, so Yves convinces Chuu and Go Won to eat their forbidden fruit and escape with her. Olivia Hye also wants to go but is not brave enough to eat her fruit. They leave without her. Olivia eventually eats her fruit and tries to follow them, but becomes lost and angry. She knows that Yves plans to create a new dimension, and decides to destroy it out of anger at being abandoned by her friends.

This journey is about the ego of the youth. Being in love, hurt, broken, but still stepping forward, the girls capture moments of youth to complete an ego. They express that ego is falling in love with themselves, and that they must first love themselves before loving others. They declare neanthropic chromosome yyxy, different to xx or xy chromosomes.



Member Emotion Animal/Zodiac Color Fruit Unit Position
Yves (이브) Faith Swan      Burgundy Apple Leader[1], Main Dancer, Lead Vocalist
Chuu (츄) Hope Penguin      Peach Strawberry Main Vocalist
Go Won (고원) Love Butterfly      Eden Green Pineapple Main Rapper, Sub-vocalist
Olivia Hye (올리비아 혜) Anger Wolf      Silver Blood Plum Lead Dancer, Sub-vocalist, Sub-rapper, Maknae


Mini albumsEdit


  • yyxy's first stage performance was at their own event: LOOΠΔ Premier Greeting: Line & Up. This is considered extremely unique and unheard of as debut stages for groups are usually performed on live TV stages such as Inkigayo or M Countdown, and not at their own events.
  • yyxy is the first sub-unit in LOONA to not have a member that doesn't go by a stage name.
  • yyxy was originally called 3/3.[2]

See alsoEdit

Check out the gallery of yyxy and the unit in-universe!


  1. Yves' unit position revealed during fan sign
  2. LOONA TV Prequel16 #ijk


v - e
HeeJinHyunJinHaSeulYeoJinViViKim LipJinSoulChoerryYvesChuuGo WonOlivia Hye
Solo singles
Mini albums
Repackage albums
Digital singles The Carol 2.0favOriTe
Exclusive releases
Concerts LOOΠΔbirth (2018) • LOOΠΔ Concert [LOOΠΔVERSE] (2019)
Other LOOΠΔ x Study Group (2018) • LOOΠΔ Cinema Theory: Up & Line (2018) • LOOΠΔ Premier Greeting: Line & Up (2018) • LOOΠΔ Studio (2018)
Dramas WoomannaDating Class
Shows Insane Quiz Show Season 2The GashinasShows Appearances : BackstagesInterviewsLivestreamsRadio Shows
Covers DanceVocal
Others LOONA TVChoreographyFancamsLive PerformancesMiscellaneous VideosMusic VideosTeasers
Characters HeeJinHyunJinHaSeulYeoJinViViKim LipJinSoulChoerryYvesChuuGo WonOlivia Hye
Locations EarthCosmosEden
Analysis Music Videos ViViDAround YouLet Me InI'll Be ThereThe CarolKiss LaterEveryday I Love YouEveryday I Need YouEclipseSinging in the RainLove Cherry MotionnewHeart AttackOne & OnlyEgoistfavOriTefavOriTeHi HighButterfly
Cinema Theory ViVi Letter to Hong KongSee SawStarlightI Like You More Nowone
Teasers Reveal Teaser (OEC)XIXXIIXXIIIXXIVXone
Other Lore Möbius Strip TheoryThe Color TheoryCultural ReferencesdlrowehtanoolPhases of LOONAMinor theories
v - e
Yyxy Logo v3
YvesChuuGo WonOlivia Hye
Mini albums
Characters yyxy : YvesChuuGo WonOlivia Hye
Locations Eden
Analysis Love4eva
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