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Lee Sejin

lee sejin
Full NameLee Sejin | 이세진 | 李洗賑
BornApril 3, 1996
HometownSiheung, Gyeonggi-do, South Korea
Height173cm | 5′-08″
Blood TypeO
FamilyMother, Father, Older Brother, Two Dogs
EducationSeoul Institute of the Arts
Gyeonggi Arts High School
Seohae Middle School
Years Active2011 – present
AgencyiMe KOREA
Official PageInstagram @ahoi_ing



Independent Films
2015 My Mother Jaeha
2013 Jintae’s Story Jintae
2011 Water Temperature Sangho

TV Series

2020 tvN A Piece of Your Mind young Kang Inwook
2019 Netflix Love Alarm

Web Drama
2020 Oppa Will Date Instead Choi Kangchan
When You Love Yourself Season 1 Yeon Joohyuk
With Coffee Hyunjin
Luv Pub Yijin
2017 Yellow Park Dongwoo

Music Video

WAX A Rising Direction
Vanilla Acoustic Like That
216Project Marry Me (Feat. Sam Ock, Junggigo)
2017 MoonMoon People
2017 Shin Jihoon You Are a Star Already
2013 Deulgukhwa Walk On

Lee Sejin Facts

  • He is the creator of the brand “Marimong” (Marimong Official Instagram @marimong.official). Marimong is a handmade plush toy and 10% of revenue is donated to animal shelters. (TMI: He made more than a hundred Marimongs and handed them out to Produce X 101 trainees.)
  • He is a Buddhist.
  • He has completed his mandatory military service.
  • Ideal Type: someone who is on the same wavelength as him, a person with similar interests
  • He does not like cucumbers. He made “I Hate Cucumber” T-shirts and sold them at a flea market.
  • He finished in 18th place in Produce X 101.


  • Mother
  • Father
  • Older Brother
    Name: Lee Woongjin | 이웅진
    Born: 1987
    He is a Korean teacher.
  • Vinch (dog)
  • Goonbam (dog)