Kep1er

**Kep1er** (Korean: 케플러, Japanese: ケプラー; read as **Kepler**) is a nine-member multinational project girl group under Pink Square Entertainment, formerly under WAKEONE and Swing Entertainment. Formed through Mnet's reality survival show *Girls Planet 999*, they made their debut on January 3, 2022 with their first mini album, *First Impact*.

Their name combines 'Kep', which means catching dreams, and the number 1, which means the nine girls coming together as one to be the best. It is also a reference to the planet 'Kepler', the Kepler space telescope and inspired by German astronomer Johannes Kepler.

They were originally meant to be active for two and a half years on a special contract ending sometime in June 2024, but the group's contracts were bought by Pink Square following the collapses of numerous Korean entertainment companies in late 2023 due to [DATA EXPUNGED], after which the members were offered new contracts.

## History

### 2021: *Girls Planet 999* and pre-debut

 File:Girls Planet 999 final 9 member debut lineup.png  On January 11, Mnet released a teaser about the the upcoming auditions for the future competitive girl group reality show, *Girls Planet 999.* It would consist of female contestants from or representing Korea, China, and Japan who all shared the same dream of debuting.

*Girls Planet 999* premiered on August 6, while the live finale was broadcasted on October 22, with the girls who ranked in the top nine to debut in the show's product group Kep1er. During the finale, nine different contestants were revealed to make their debut; Kim Chaehyun ranked first overall, presumably becoming the group's future center, Huening Bahiyyih ranked second overall, Choi Yujin ranked third, Kim Dayeon ranked fourth, Seo Youngeun ranked fifth, Kang Yeseo ranked sixth, Ezaki Hikaru ranked seventh, Sakamoto Mashiro ranked eighth, and finally, Shen Xiaoting ranked ninth overall and was the last contestant revealed to debut.

On October 22, following the conclusion of *Girls Planet 999*, they opened the staff and group's Twitter, Instagram, and Facebook accounts. On the group's social media accounts, a teaser was posted showcasing the group's official logo which had previously been revealed during the final episode of the show. On October 25, an article was published on Naver, revealing that the group would carry out their activities as a group for roughly the next two and a half years and are currently already starting preparations for their debut album.

The group's fan café and V Live channel officially opened on November 2 and 3, respectively. On November 4, Kep1er held their first V Live. On November 9, the group’s first YouTube video was uploaded onto their YouTube channel.

### 2022: Debut with *First Impact*, fandom name and colors, *Queendom 2*, *Doublast*, Japanese debut, "Sugar Rush", *Troubleshooter*

 File:Kep1er First Impact group concept photo (1).png  On November 22, 2021, the group's website officially opened, revealing that the group will debut in December 2021. On November 24, 2021, the group's SNS posted teaser photos and announced that they will make their debut on December 14, 2021. Later on November 29, 2021, it announced that they will debut with their first mini album, *First Impact*. However, on December 5, 2021, it was announced that the group's debut will be postponed after a staff member tested positive to COVID-19. On December 8, 2021, it was announced through the group's fan cafe that the album would be postponed to January 3, 2022.

On January 3, the group announced their fandom name and colors.

On February 21, Mnet revealed that the group will be participating in their reality show, *Queendom 2*, which aired on March 31.

 File:Kep1er Doublast group concept photo 2.png  On May 27, WAKEONE confirmed that Kep1er is preparing for a comeback in June following *Queendom 2'*s finale. The group already completed filming for the music video and are in the final stages of production for their upcoming album. On June 3, a teaser photo revealed the group's second mini album, *Doublast*, would be released on June 20.

On July 21, the group announced their plan to release their Japanese debut with their first single, "Fly-Up", which was released on September 7.

On September 16, UNIVERSE revealed that Kep1er would be participating in their UNIVERSE Music project with the release of the digital single "Sugar Rush", which would be released on September 23.

On September 20, the group revealed the design of their official light stick.

On September 26, a teaser poster revealed that Kep1er will be releasing their third mini album, *Troubleshooter*, on October 13.

### 2023: "Fly-By", first Japan tour, *Lovestruck!*

* Kep1er Lovestruck! group concept photo 1.pngConcept for *Lovestruck!* (Eye Contact ver.)
* Kep1er Lovestruck! group concept photo 3.pngConcept for *Lovestruck!* (Love Strike ver.)
1/2On January 16, 2023, a teaser poster revealed that Kep1er will comeback with their second Japanese single "Fly-By", on March 15.

On February 14, a poster revealed across the group's Japanese social medias announced the group will hold their first ever Japanese tour, titled Kep1er Japan Concert Tour 2023 'Fly-By', from May 20 to June 11.

On March 1, WAKEONE revealed that the group will be making a comeback, with its release date set for April 10. On March 20, it was announced that they will the releasing their fourth mini album, *Lovestruck!*, on April 10.

## Members

Only 5 Kep1er members have official positions.

## Discography

Full Albums* *E1emer* (2025)

Mini albums* *First Impact* (2022)
* *Doublast* (2022)
* *Troubleshooter* (2022)
* *Lovestruck!* (2023)
* *Starry Serenade* (2023)
* *SUS-picion* (2024)

Digital singles* "Sugar Rush" (2022)

Participation releases* *<Queendom 2> Part.1-2* ("Wa Da Da - Queendom 2 Ver.") (2022)
* *<Queendom 2> Part.2-2* ("Pool Party - Rollin’ right now") (2022)
* "<Queendom 2> Position Unit Battle Part.1-1" ("Don't Go (나비소녀)") (2022)
* *<Queendom 2> Position Unit Battle Part.1-2* ("Purr") (2022)
* *<Queendom 2> Final* ("THE GIRLS (Can't turn me down)") (2022)
* "<Queendom 2> Jinaon (Epilogue)" ("Jinaon (Epilogue) (지나온 (Epilogue))") (2022)
Singles* "Fly-Up" (2022)
* "Fly-By" (2023)

Digital singles* "Wing Wing - From The First Take" (2022)
* "Wa Da Da (Japanese ver.) - From The First Take" (2022)
* "Wa Da Da (Japanese ver.) (IMLAY Remix)" (2023)

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Concerts
Japan tours* Kep1er Japan Concert Tour 2023 'Fly-By' (2023)

Concert participation* 2022 UNI-KON (2022)
* HallyuPopFest London 2022 (2022)
* KCON 2022 LA (2022)
* HallyuPopFest Sydney 2022 (2022)
* KCON 2022 Japan (2022)
* KCON 2023 Thailand (2023)
* Seoul Festa 2023 'K-POP SUPER LIVE' (2023)
* KCON 2023 Japan (2023)

Fanmeetings* 2022 Kep1er Fan Meeting <Kep1anet> (2022)

Filmography
Reality shows* *Kep1er-view* (Mnet, 2021)
* *Kep1er Zone* (U+Idol Live, 2022)
* *Queendom 2* (Mnet, 2022) - contestant
* *Kep1er Zone 2* (U+Idol Live, 2022)
* *KEPtain Heroes* (Youtube, 2022)

Endorsements* S2ND (2022)

Awards and nominations
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Trivia* Multiple members were members of other groups.
	+ Yeseo is a former member of Busters and CutieL, and a pre-debut member of Pritti.
	+ Yujin is a former member of CLC.
	+ Hikaru is a former member of +GANG.
* Dayeon was a contestant on *Produce 48*.
* Xiaoting was a contestant on *Produce Camp 2020*.
* On *Girls Planet 999*, Kep1er was teased as a "global girl group".
	+ The group is made up of members from South Korea, Japan and China.

Gallery
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Notes
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References
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Official links

* Facebook
* Instagram
* TikTok
* Twitter
	+ Official
	+ Staff
* YouTube
* Twitter

Chinese* Weibo

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1. ↑ YouTube: Kep1er 케플러 l 케플러의 첫 유튜브 라이브가 찾아옵니다다다
2. ↑ [Girls Planet 999] Global Audition ‘당신을 <Girls Planet 999>에 초대합니다’
3. ↑ Soompi: “Girls Planet 999” Debut Group Kep1er Opens Official Social Media Accounts
4. ↑ @official\_kep1er on Twitter (October 23, 2021 tweet)
5. ↑ (KR) Naver: ‘걸스플래닛999’ 최종 데뷔 그룹명 Kep1er 확정 “본격 데뷔 준비 돌입”(공식)
6. ↑ @official\_kep1er on Twitter (November 2, 2021 tweet)
7. ↑ @official\_kep1er on Twitter (November 3, 2021 tweet)
8. ↑ Kep1er 1st V LIVE (November 4, 2021)
9. ↑ @official\_kep1er on Twitter (November 9, 2021 tweet)
10. ↑ @official\_kep1er on Twitter (November 22, 2021)
11. ↑ Update: Kep1er Announces New Release Date For Postponed Debut Album “FIRST IMPACT”
12. ↑ Soompi: Kep1er Announces Official Fandom Name And Colors
13. ↑ @MnetKR on Twitter: (February 21, 2022)
14. ↑ Soompi: Kep1er Confirmed To Make June Comeback After “Queendom 2” Finale
15. ↑ @official\_kep1er on Twitter (June 3, 2022)
16. ↑ Soompi: Kep1er Confirms Comeback Date With Refreshing New Mood Photo Teaser
17. ↑ @kep1er\_jp on Twitter (July 21, 2022)
18. ↑ Soompi: Kep1er Reveals Official Light Stick
19. ↑ @official\_kep1er on Twitter (September 26, 2022)
20. ↑ @kep1er\_jp on Twitter (January 16, 2023)
21. ↑ Allkpop: Kep1er to hold their first Japanese arena tour since debut
22. ↑ Soompi: Kep1er Announces April Comeback Date
23. ↑ Soompi: Kep1er Gears Up For April Comeback With 1st Teaser For “LOVESTRUCK!”
24. ↑ 24.0 24.1 KpopStarz: Only 5 Kep1er Members Have Official Positions — Here’s Why Kep1ians are Upset
25. ↑ Korea JoongAng Daily: K-pop industry is gearing up for a busy start to 2022
26. ↑ *Queendom 2*: Episode 5
27. ↑ UNI-KON 2022 Line-up. *UNIVERSE Twitter* (2022-06-23). Retrieved on June 26, 2022.
28. ↑ Soompi: KCON 2022 Japan Announces 1st Lineup Of Performers
29. ↑ Soompi: KCON 2023 Japan Announces 1st Performer Lineup
30. ↑ Soompi: VIVIZ, LOONA, WJSN, Brave Girls, Kep1er, And Hyolyn Confirmed To Star In “Queendom 2”