S2iT Members Profile
S2iT (에스투잇) is a five-member pre-debut South Korean girl group under MONSTER BRAIN and Be The Max Entertainment. The lineup consists of Yeonsoo, Haru, Sea, Hyobin, and Seungbi. They will hold their debut showcase in December 2025 (X), and they will debut in January 2026 (X).
Group Name Meaning: The group advances toward its goal (it) with the combined passion of its members and fandom.
Official Greeting: “Be Your Mirror, Be Your Light, Hello we are S2iT!”
S2iT Fandom Name: N/A
S2iT Official Fandom Color: N/A
Official Logo:
Official SNS:
Instagram: @s2it_official
X: @S2iT_2026
S2IT Members Profile:
Haru
Stage Name: Haru (하루)
Birth Name: Lee Yunseon (이윤선)
Position(s): Leader
Birthday: July 14, 2005
Zodiac Sign: Cancer
Chinese Zodiac Sign: Rooster
Height: 158 cm (5’2″)
Weight: 42 kg (92 lbs)
Blood Type: N/A
MBTI Type: ENFP
Nationality: Korean
Instagram: @luv_yseon_ (Main) / @0_yseon (Second)
Naver Blog: @julyseon_
Threads: @luv_yseon_ (Main) / @0_yseon (Second)
Haru Facts:
– She is from Gumi, Gyeongsangbuk-do, South Korea.
– Haru danced at RED STAGE and mu:tudio.
– She participated in dance competitions when she was younger.
– Her three most-used phone apps are KakaoTalk, Instagram, and Camera.
– Haru likes to choreograph dances.
– In 2023, she won Gumi City’s National Singing Contest held by KBS.
– She was a pre-debut member of Glacia.
– Two of her special skills are choreographing and singing trot.
– Haru attended Sangmo High School.
– Her ideal type is a guy who is cute when he laughs.
– She is a part of the dance team WILDBODY. She was a part of the dance teams HERIUN and Inherent. She goes under the stage name YSEON.
– Haru’s role models are GFRIEND and BLACKPINK.
– She started dreaming of becoming an idol in 2016 after she saw GFRIEND perform.
– Her hobby is watching movies.
– Haru can do 5 types of Latin dance styles.
Yeonsoo
Stage Name: Yeonsoo (연수)
Birth Name: Yeonsoo (연수)
Position(s): N/A
Birthday: N/A
Zodiac Sign: N/A
Chinese Zodiac Sign: N/A
Height: 163 cm (5’4″)
Weight: 45 kg (99 lbs)
Blood Type: N/A
MBTI Type: INFJ
Nationality: Korean
Instagram: @w0owo0o
Yeonsoo Facts:
– She was a pre-debut member of Glacia.
– Some of her hobbies are writing lyrics, watching ballet performances, and making beads.
– Her role model is Rain.
– Yeonsoo took dance/vocal classes at Flowing Academy and Joy Dance Plugin Music Academy.
– She speaks English and Korean.
– Her special skills are creating choreography and writing lyrics.
– Yeonsoo passed auditions for the companies MODHAUS, WAKEONE, P NATION, and Biscuit Entertainment.
Sea
Stage Name: Sea (세아)
Birth Name: Song Jiwoo (송지우)
Position(s): N/A
Birthday: 2006
Zodiac Sign: N/A
Chinese Zodiac Sign: N/A
Height: 161 cm (5’3″)
Weight: 43 kg (94 lbs)
Blood Type: N/A
MBTI Type: ENFP
Nationality: Korean
Instagram: @happypyp_
Sea Facts:
– Her special skill is dancing.
– Sea was a Choco Entertainment trainee starting in the beginning of August 2024 to October 2024.
– She attended Osong High School and was a part of their dance team.
– Her role model is aespa‘s Karina.
– Sea’s hobby is walking.
Hyobin
Stage Name: Hyobin (효빈)
Birth Name: Park Hyobin (박효빈)
Position(s): N/A
Birthday: October 16, 2009
Zodiac Sign: Libra
Chinese Zodiac Sign: Ox
Height: 167 cm (5’5″)
Weight: 44 kg (97 lbs)
Blood Type: N/A
MBTI Type: INFJ
Nationality: Korean
Instagram: @hyobin_o9
TikTok: @hyobingsooo
Hyobin Facts:
– She was a part of 4D Lable’s group Trendy.
– Her hobby is watching movies.
– Hyobin has a younger sister and younger brother.
– She took dance classes at Mudoctor Academy.
– Some of her special skills are choreographing, acting, and street dancing.
– Hyobin decided to become a singer because of TWICE.
– She was a part of Gyeonggi Teens Musical.
Seungbi
Stage Name: Seungbi (승비)
Birth Name: Ahn Seungbi (안승비)
Position(s): Maknae
Birthday: July 13, 2010
Zodiac Sign: Cancer
Chinese Zodiac Sign: Tiger
Height: N/A
Weight: N/A
Blood Type: B
MBTI Type: ENFJ/ENFP
Nationality: Korean
Instagram: @asb0713 (Personal) /@seung_bi_ahn (Managed By Parents)
NGL: @asb07131
Threads: @asb0713 (Personal) /@seung_bi_ahn (Managed By Parents)
TikTok: @asb0713_
YouTube: @안승비 seungA_bi_ahn
Seungbi Facts:
– She lives in Nonhyeon-dong, Incheon, South Korea.
– Seungbi was a contestant on Universe Ticket, where she ended up placing #43.
– She says she memorizes choreographies quickly.
– Her favorite part of her face is her dimples.
– Seungbi is a member of Play With Me Club (2021-2022; 2024-present). Seungbi was a pre-debut member of the groups A4TEEN and Hi Dream.
– Several of her favorite foods are seonji haejang-guk, tteokbokki, gopchang, mulhwe, all seafoods, and hoe.
– She has an older brother, and younger brother named Seungyou.
– Seungbi takes dance classes at RED STAGE.
– BoA is one of her favorite artists.
– Seungbi is also a model. She’s modeled for BLAHBANG, PRANKERS, and other brands.
– Two of her nicknames are Dracula because of her “crooked” teeth and Dolphin because she mimicked one at one of her auditions.
– If she could have any superpower, she would get teleportation.
– She started training when she was in sixth grade.
– Her role model is G-Dragon because she composes and writes lyrics, just like he does.
– Two of her favorite Sanrio characters are Hello Kitty and Cinnamoroll.
made by: brightliliz
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– Kprofiles.com
Note 2: Haru’s leader position was confirmed in this performance.
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