Seo Young Eun

Name: Seo Young Eun
Native name: 서영은
Also Known as: Suh Young Eun, Seo Youngeun, Seo Yeongeun, Seo Yeong Eun
Nationality: South Korean
Gender: Female
Born: December 27, 2004
Age: 21

Seo Young Eun is a South Korean singer, dancer, and former member of KEP1ER (케플러). She graduated from Howon High School and is enrolled in the K-Pop program at Howon University. Before debuting, she was a backup dancer for DREAMNOTE.

She joined Biscuit Entertainment (비스킷엔터테인먼트) and, in late 2021, she participated in Mnet's survival show "Girls Planet 999", where she ranked 5th. During the final episode of the show, she was confirmed as part of the resulting project group and was set to perform for 2 and a half years.

She made her debut in January 2022 as KEP1ER's main vocalist and dancer with the mini album "First Impact". After the departure of Kang Ye Seo in May 2024, she also became the group's maknae.

In June 2024, the agencies WakeOne Entertainment (웨이크원엔터테인먼트) and Swing Entertainment (스윙엔터테인먼트) decided to continue the group, so she renewed her contract. However, in July 2025, she went on hiatus to focus on her mental health recovery and never returned to the lineup. She officially left on March 6, 2026.

(Source: MyDramaList) Edit Biography

Year	Title	#	Role	Rating
2025	KPopped Korean TV Show, 2025, 8 eps (Ep. 3) (Guest)	8	(Ep. 3) Guest	6.9
2024	2024 Idol Star Athletics Championships Chuseok Special Korean TV Show, 2024, 3 eps (Regular Member)	3	Regular Member	7.7
2024	ENA K-Pop Up Chart Show Korean TV Show, 2024, 7 eps (Ep. 6) (Guest)	7	(Ep. 6) Guest	0.0
2024	With Music Japanese TV Show, 2024, 25 eps (Ep. 6) (Guest)	25	(Ep. 6) Guest	0.0
2023	2023 Music Bank Global Festival Korean TV Show, 2023, 2 eps [Performer - Part 2] (Regular Member)	2	[Performer - Part 2] Regular Member	8.0
2023	The Weekly 99 Music Japanese TV Show, 2023, 110 eps (Ep. 10, 30) (Guest)	110	(Ep. 10, 30) Guest	0.0
2023	Sore Snow Man ni Yarasete Kudasai Japanese TV Show, 2023, 50 eps (Guest)	50	Guest	8.2
2023	Let Me Know K-Pop! Japanese TV Show, 2023, 20 eps (Ep. 1) (Guest)	20	(Ep. 1) Guest	0.0
2023	Kep1er Zone Season 3 Korean TV Show, 2023, 10 eps (Regular Member)	10	Regular Member	8.4
2023	Mnet Prime Show Korean TV Show, 2023, 10 eps [Panelist] (Regular Member)	10	[Panelist] Regular Member	0.0
2023	Webtoon Singer Korean TV Show, 2023, 8 eps (Ep. 7) (Guest)	8	(Ep. 7) Guest	6.6
2023	Boys Planet Korean TV Show, 2023, 12 eps (Ep. 0, 12) (Guest)	12	(Ep. 0, 12) Guest	8.3
2023	K-Pop Generation Korean TV Show, 2023, 8 eps (Regular Member)	8	Regular Member	7.6
2022	2022 MBC Music Festival: With Love Korean TV Show, 2022, 1 eps [Performer] (Regular Member)	1	[Performer] Regular Member	8.0
2022	2022 KBS Song Festival: Y2K Korean TV Show, 2022, 1 eps [Performer] (Regular Member)	1	[Performer] Regular Member	7.8
2022	2022 Idol Star Athletics Championships Chuseok Special Korean TV Show, 2022, 3 eps (Regular Member)	3	Regular Member	7.7
2022	Show! Music Core Coin Karaoke Korean TV Show, 2022, 45 eps (Ep. 20) (Guest)	45	(Ep. 20) Guest	8.3
2022	Kep1er Zone Season 2 Korean TV Show, 2022, 10 eps (Regular Member)	10	Regular Member	8.2
2022	Show!terview with Sunmi Korean TV Show, 2022, 41 eps (Ep. 18) (Guest)	41	(Ep. 18) Guest	7.6
2022	My Playlist Korean TV Show, 2022, 10 eps (Ep. 3) (Guest)	10	(Ep. 3) Guest	7.1
2022	Kep1er DOUBLAST on Air Korean TV Show, 2022, 1 eps (Regular Member)	1	Regular Member	8.4
2022	Venue101 Japanese TV Show, 2022, 100 eps (Guest)	100	Guest	0.0
2022	Queendom Season 2 Korean TV Show, 2022, 10 eps [Contestant] (Regular Member)	10	[Contestant] Regular Member	7.6
2022	Adola School Season 3: PR on Idol Korean TV Show, 2022, 38 eps (Ep. 18) (Guest)	38	(Ep. 18) Guest	8.1
2022	Idol's Snack Spree Korean TV Show, 2022, 20 eps (Ep. 16) (Guest)	20	(Ep. 16) Guest	7.7
2022	Talk Pawon 25 O'Clock Korean TV Show, 2022, 250 eps (Ep. 42) (Guest)	250	(Ep. 42) Guest	0.0
2022	Kep1er Zone Korean TV Show, 2022, 10 eps (Regular Member)	10	Regular Member	8.3
2022	Kep1er Debut Show Korean TV Show, 2022, 1 eps (Regular Member)	1	Regular Member	8.4
2021	Kep1er View Korean TV Show, 2021, 2 eps (Regular Member)	2	Regular Member	8.3
2021	Adola School Season 2: Homecoming Day Korean TV Show, 2021, 22 eps (Ep. 10, 15) (Guest)	22	(Ep. 10, 15) Guest	8.5
2021	Will This Work?: Melon Station Korean TV Show, 2021, 49 eps (Ep. 44) (Guest)	49	(Ep. 44) Guest	8.3
2021	Girls Planet 999 Korean TV Show, 2021, 12 eps [Contestant] (Regular Member)	12	[Contestant] Regular Member	7.3
2021	Studio Moon Night Korean TV Show, 2021, 156 eps (Ep. 143) (Guest)	156	(Ep. 143) Guest	8.5
2020	The Silence of IDOL Korean TV Show, 2020, 26 eps (Ep. 16) (Guest)	26	(Ep. 16) Guest	8.2
2020	Idol Human Theater Korean TV Show, 2020, 104 eps (Ep. 24, 40, 66) (Guest)	104	(Ep. 24, 40, 66) Guest	8.3
2020	Idol Ability Market Korean TV Show, 2020, 27 eps (Ep. 29) (Guest)	27	(Ep. 29) Guest	8.7
2020	CDTV Live! Live! Japanese TV Show, 2020, 125 eps (Guest)	125	Guest	8.0
2019	Lunch Attack Korean TV Show, 2019, 890 eps (Ep. 617) (Guest)	890	(Ep. 617) Guest	6.0
2015	Love Music Japanese TV Show, 2015, 350 eps (Ep. 326) (Guest)	350	(Ep. 326) Guest	7.9
2011	Weekly Idol Korean TV Show, 2011, 707 eps (Ep. 547, 608, 666, 688) (Guest)	707	(Ep. 547, 608, 666, 688) Guest	8.1
1998	Music Bank Korean TV Show, 1998, 1240 eps [Performer] (Guest)	1240	[Performer] Guest	7.8