Sei (이서정) is a South Korean actress, singer and dancer, Her real name is Lee Seo Jeong, She was born on 7th January 2000 in Seoul, South Korea. Sei is known for her drama serials Be Melodramatic (2019), Would You Like a Cup of Coffee? (2021), Cheongchunhyang Jeon (2021) and the South Korean actress Sei will also be starring in the upcoming Netflix Series My Boyfriend x My Friend Kdrama (2023).
Sei father name is N/A and her mother name is N/A. Her marital status is unmarried. She is not dating anyone for now and there is no insight into any of her past relationships.