Before Sei was popular because of her cute-but-slay appearance, she initially became a trainee for LOUDers Entertainment.
After one year training, Sei then finally had a chance to be one of the representatives of the agency to join Produce 101 in 2016.
Her performances were pretty good, but unfortunately she got eliminated in the 5th episode by placing the 85th position.
Sei then decided to leave the agency and joined another agency, Fantagio.
One year later, she debuted alongside a new Fantagio’s girl group, Weki Meki, on August 8, 2017. The group also made a release of their first EP called Weme.
She then ventured her wings by making a collaboration song, FM201.8-10Hz : You and Me, alongside Ants in previous 2018.
- Real Name: Lee Seo Jeong (이서정)
- Stage Name: Sei (세이)
- Nickname: –
- Birthday: January 7, 2000
- Birthplace: Ansan, Gyeonggi, South Korea
- Zodiac Sign: Capricorn
- Nationality: South Korean
- Position: Vocalist, Rapper (Weki Meki)
- Height: 163 cm (5’4″)
- Weight: 49 kg (108 lbs)
- Blood Type: B
- Religion: –
- Profession: Singer, Dancer, Rapper
- Education: Theos Senior High School
- Hobbies: Listening to music
- Parents: –
- Siblings: –
- Boyfriend: –
- Facebook: –
- Twitter: –
- Instagram: @seiric_o
- TikTok: –
- YouTube: –
- She has a brother who is older than her.
- Sei once made an appearance for an MV own by ASTRO called Confession.
- Sprout is Sei’s emoji.
- Before joined Fantagio Entertainment, she already had joined LOUDers Entertainment as a trainee.
- Fantagio announced her as the second member of Weki Meki.
- She became a trainee for approximately one year until she joined Produce 101.
- She survived until the 5th episode and got 85th rank.
- Tea is Sei’s most favorite drink.
- Otters is her most favorite animal.
- She is very good at impersonating the sound of Minion.
- Sei usually will use her electric pad when winter comes because she wants to keep her body warm.
- The first purchases of hers when she used a credit card are Cherry Limeade Sparkling Water and Very Berry Trident gum.
- When she celebrated the 21st birthday party, she got a present from Elly, a bathing robe.
- Sei actually doesn’t really like to eat macarons.
- She loves sunlight so much.
- She loves scrunchie.
- When she went to a store one day, she actually had a plan to buy all kinds of Oreo varians but her plan was interrupted by the manager.
- Blueberry purple shade is her most favorite blush color.
- In 2020, she had a desire to get a trophy.
- Sei got her own driver’s license.
- She said that she thought all Weki Meki members were very beautiful when she first saw them.
- Sei said that tacos are very good to be eaten in the lunch time.
- Sei said that her ideal type is someone who adores her so much, generous, and cute.
Pics of Sei
1. Her signature hairstyle looks bombastic in her
2. Look how cute she is in this photoshoot
3. Her beauty is so flawless and daring
4. Sei wins our heart with her colorful appearance
5. An angel has just arrived
Sei, our tea lover, isn’t just a cool idol to be idolized, but she’s also a great person to be friend of. Well, that’s really interesting, isn’t it?