LIGHTSUM

LIGHTSUM (라잇썸) is a 6-member girl group under Cube Entertainment. The lineup consists of: Sangah, Chowon, Nayoung, Hina, Juhyeon, and Yujeong. Huiyeon and Jian left the group on October 25, 2022. They officially debuted on June 10, 2021 with the single ‘Vanilla’.

LIGHTSUM members height, age

Click on a member's name to scroll to their profile

Member	Height	Age
Sangah	167 cm	24 years
Chowon	168 cm	24 years
Nayoung	155 cm	23 years
Hina	159.6 cm	23 years
Juhyeon	172 cm	22 years
Yujeong	162 cm	22 years

Former members (2)

Member	Height	Age
Huiyeon	163 cm	21 years
Jian	165.6 cm	19 years

Debut Date: June 10, 2021
Official Fandom Name: SUMIT
Website (Japan): lightsum-official.jp
X (Twitter): @CUBE_LIGHTSUM / (Staff) @LIGHTSUMSTAFF / (Japan): @LIGHTSUM_JP

Official links

Group Stats

Average height: 163.9 cm
Tallest: 172 cm · Juhyeon
Shortest: 155 cm · Nayoung
Average age: 23 years
Oldest: 24 years · Sangah
Youngest: 22 years · Juhyeon

Members

Sangah

Stage Name: Sangah (상아 / 相雅 / サンア)
Birth Name: Yoon Sang Ah (윤상아)
Hanja Name: Yǐn Xiāng Yǎ (尹相雅)
Position: Leader, Main Rapper, Lead Dancer
Birthday: September 4, 2002
Age: 24 years
Zodiac Sign: Virgo
Chinese Zodiac Sign: Horse
Height: 167 cm (5'5.5″)
Blood Type: B
MBTI Type: ESFJ
Nationality: Korean
Representative Color: Red

Facts

Sangah was born in Ganseok-dong, Namdong-gu, Incheon, South Korea.
She often touches her hair.
She graduated from Inseong Girls’ High School.
She was the first member revealed.
She has an older brother.
Her role models are CL and Bae Suzy.
She loves baseball.
Her favorite colors are pastel shades.
She collects signed baseball T-shirts.
She studied dance at PinkM Dance Academy and A-Root Dance Academy.
She doesn’t get shy easily. (TongTong TV)
She competed on Queendom Puzzle, eliminated in episode 7.
Her motto: “Don’t get discouraged and keep your shoulders straight!”

Chowon

Stage Name: Chowon (초원 / 霄瑗 / チョウォン)
Birth Name: Han Cho Won (한초원 / ハン・チョウォン)
Hanja Name: Hán Xiāo Yuàn (韓霄瑗)
Position: Main Vocalist
Birthday: September 16, 2002
Age: 24 years
Zodiac Sign: Virgo
Chinese Zodiac Sign: Horse
Height: 168 cm (5'6″)
Weight: 50 kg (110 lbs)
Blood Type: O
MBTI Type: INFJ
Nationality: Korean
Representative Color: Purple

Facts

She was born in Eunpyeong-gu, Seoul, South Korea.
She studied at Seoul Eungam Elementary, Chungam Middle, and Hanlim Entertainment & Arts High.
She was the third member revealed.
She competed on Produce 48, finishing 13th.
She was supposed to debut in IZ*ONE (ranked 6th), but due to vote manipulation, she ranked 13th.
Her nicknames include Anti-war, Stiff, Class Monitor, Black Pearl, Cube’s Future, Madewa, and Reversal Queen.
She appeared on MBC News in first grade.
She is Catholic.
Her baptismal name is Sophia.
She is friends with DRIPPIN’s Junho.
She trained for 1 year and 10 months before Produce 48.
Her hobbies are playing piano and eating.
Her skills include waacking dance and composing.
She originally trained to be an actress.
She has a younger brother.
Her members often tease her. (TongTong TV)
She loves collecting perfumes, accessories, and cosmetics.
Her motto: “Never mind.”

Nayoung

Stage Name: Nayoung (나영 / 娜英 / ナヨン)
Birth Name: Kim Na Young (김나영 / キム・ナヨン)
Hanja Name: Jīn Nà Yīng (金娜英)
Position: Main Vocalist, Lead Dancer, Center
Birthday: November 30, 2002
Age: 23 years
Zodiac Sign: Sagittarius
Chinese Zodiac Sign: Horse
Height: 155 cm (5'1″)
Weight: 43 kg (94 lbs)
Blood Type: O
MBTI Type: ENFP
Nationality: Korean
Representative Color: Yellow

Facts

She was born in Chuncheon, Gangwon-do, South Korea.
She studied at Bongui Elementary, Namchuncheon Girls’ Middle, and Seoul Performing Arts High.
She was the fifth member revealed.
She competed on Produce 48, finishing 21st.
She is a former Banana Culture trainee.
While at Banana Culture, she was part of the trainee group Newkid.
She joined Cube Entertainment in March 2020.
She trained for 1 year and 7 months before Produce 48.
Her nicknames include Captain Kawaii, Great Rabbit, and Narongi.
Her hobby is mimicking people’s speech, acting, and characters.
Her specialties are skipping rope and cartwheels.
She is friends with FANATICS’ Doah and fromis_9’s Gyuri.
She passed first-round auditions for FNC, Woollim, and Source Music.
She appeared in SBS’s Bravo My Life (Ep. 10) and tvN’s Where is Mr. Kim (Season 2, Ep. 3).

Hina

Stage Name: Hina (히나 / 阳菜 / ヒナ)
Birth Name: Nagai Hina (나가이 히나 / ナガイヒナ)
Position: Sub Vocalist
Birthday: April 7, 2003
Age: 23 years
Zodiac Sign: Aries
Chinese Zodiac Sign: Goat
Height: 159.6 cm (5'3″)
Weight: 40 kg (88 lbs)
Blood Type: A
MBTI Type: ESFJ
Nationality: Japanese
Representative Color: Pink

Facts

She was the seventh member revealed.
She was born in Kanagawa Prefecture, Japan.
She attended MARU Dance Studio.
In Japan, she studied at a dance academy that taught K-pop, where she learned ITZY’s “Icy.”
When learning Korean, she found some words very cute.
If she doesn’t understand Korean words, she gives thumbs up or says “OK! OK!” - members know she doesn’t understand.
Her friends and teacher threw her a surprise party before she left Japan for Korea.
She is a big TWICE fan, attending concerts and a High Touch event.
She knows ballet.
As a child, she wanted to be a flight attendant like her mother. (TongTong TV)
She loves mint chocolate Greek yogurt. (TongTong TV)
Her motto: “Your efforts will never betray you.”

Juhyeon

Stage Name: Juhyeon (주현 / 珠賢 / ジュヒョン)
Birth Name: Lee Ju Hyeon (이주현)
Hanja Name: Lǐ Zhū Xián (李珠贤)
Position: Main Dancer, Lead Vocalist
Birthday: April 8, 2004
Age: 22 years
Zodiac Sign: Aries
Chinese Zodiac Sign: Monkey
Height: 172 cm (5'7.5″)
Weight: 48 kg (104 lbs)
Blood Type: AB
MBTI Type: INTJ
Nationality: Korean
Representative Color: White

Facts

She was born in Seoul, South Korea.
She attended Boseong Girls’ Middle School.
She was the second member revealed.
Her nickname is Robotjju. (TongTong TV)
She competed on The Unit, finishing 25th.
She was the youngest contestant on The Unit and the second trainee overall.
She auditioned for Dancing High but wasn’t selected.
She had a cameo in PENTAGON’s “Young” MV.
Her hobbies are watching dramas, listening to music, and walking.
She joined Cube Entertainment in 2014.
Her role models are BoA and HyunA.
She began dancing in 2nd grade.
Her motto: “Let’s not lose me.”

Yujeong

Stage Name: Yujeong (유정 / 宥姃 / ユジョン)
Birth Name: Lee Yu Jeong (이유정 / イ・ユジョン)
Hanja Name: Lǐ Yòu Zhēng (李宥姃)
Position: Sub Vocalist, Maknae
Birthday: June 14, 2004
Age: 22 years
Zodiac Sign: Gemini
Chinese Zodiac Sign: Monkey
Height: 162 cm (5'4″)
Weight: 41 kg (90 lbs)
Blood Type: AB
MBTI Type: ISTP
Nationality: Korean
Representative Color: Blue

Facts

She was the eighth member revealed.
She was born in Seoul, South Korea.
She studied at Bongwon Middle (graduated) and Seoul Performing Arts High (Theater & Film).
She competed on Produce 48, finishing 51st.
Her hobbies are piano and K-pop dances.
Her specialty is musicals.
She previously trained at Stardom, Fantagio, and CNC School.
She trained for six months before Produce 48.
She was a cheerleader for five years.
She is known as the team’s “Rabbit.” (TongTong TV)
She is called the “lazy perfectionist.” (TongTong TV)
Her motto: “Let’s not make excuses and do our best.”

Former member

Huiyeon

Stage Name: Huiyeon (휘연 / 徽姸 / フィヨン)
Birth Name: Oh Hui Yeon (오휘연)
Hanja Name: Wú Huī Yán (吳徽姸)
Position: Sub Vocalist
Birthday: August 1, 2005
Zodiac Sign: Leo
Chinese Zodiac Sign: Rooster
Height: 163 cm (5'3")
Blood Type: O
Nationality: Korean
MBTI Type: ISFP

Facts

She was the sixth member revealed.
She was born in Seoul, South Korea.
She studied at Daegu Dalsan Elementary (graduated) and Chung-Ang University College of Master’s High (second year).
She passed first-round auditions for P Nation, JYP, and Snowball Entertainment.
She was a figure skater in elementary school. (TongTong TV)
She won two figure skating awards.
She trained as an actress under Snowball Entertainment.
Her favorite food is rice noodles. (TongTong TV)
Huiyeon can play piano.
Her hobby is watching Netflix.
Her nicknames include Squirrel and Desert Fox.
Her motto: “You gotta do better!”
Cube Entertainment announced her departure on Oct 25, 2022.

Jian

Stage Name: Jian (지안 / 池按 / ジアン)
Birth Name: Kim Ji An (김지안)
Hanja Name: Jīn Chí Àn (金池按)
Position: Sub Vocalist, Rapper, Maknae
Birthday: November 4, 2006
Zodiac Sign: Scorpio
Chinese Zodiac Sign: Dog
Height: 165.6 cm (5'5″)
Blood Type: B
Nationality: Korean
MBTI Type: ENTP

Facts

She was the fourth member revealed.
She was born in Seoul, South Korea.
She studied at Seoul Beodle Elementary (graduated) and Jungshin Girls’ Middle.
She is a former JYP trainee.
She has a very positive personality.
She learned Taekwondo for two years in kindergarten.
Her motto: “Let’s spend days without regret when we look back.”
Her favorite colors are burgundy and black.
Her hobbies are shopping and Netflix.
In LIGHTSUM, she is known as the “king of excessive pride.”
Cube Entertainment announced her departure on Oct 25, 2022.