Yeseo

• Yeseo began her entertainment career at approximately five years old. She appeared in television dramas and participated in children's entertainment activities long before debuting with Kep1er.

• Her first notable television acting credit was Golden Fish in 2010. She played the character Moon Seo Yeon in the MBC drama.

• She appeared in the medical drama Brain. In the 2011–2012 KBS series, she played Choi Ruby.

• Yeseo appeared in the film Miracle in Cell No. 7. She played Choi Ji Yeong in the popular 2013 South Korean movie.

• She was not the actress who played the film's main child character. That role was portrayed by Kal So Won, while Yeseo had a supporting role.

• Yeseo debuted in the children's group CutieL. She began performing with the group in 2010, years before her later K-pop debuts.

• She was associated with the pre-debut project Pritti. The project formed part of her early entertainment career before joining Busters.

• Yeseo joined Busters in February 2019. She entered the group following the departure of former member Minjung.

• She was one of the youngest members of Busters. Her age and extensive acting background made her an interesting addition to the group.

• Yeseo left Busters in July 2020. She subsequently continued pursuing opportunities in acting and music.

• She entered Girls Planet 999 under 143 Entertainment. The agency later managed her activities with MADEIN.

• Her initial Girls Planet 999 ranking was K13. She began the competition ranked thirteenth among the Korean contestants.

• She rose to second place in the mentors' initial Top 9 evaluation. Her performance abilities helped her receive recognition early in the competition.

• Yeseo performed 4MINUTE's Crazy during her introductory evaluation. The powerful song contrasted with her youthful appearance and demonstrated her versatility.

• She performed IZ*ONE's FIESTA during the Connect Mission. Her team, Crown, won its performance matchup.

• Her Fate performance became one of her most memorable stages. She performed Lee Sun Hee's emotional song with a team that included future Kep1er members Yujin and Xiaoting.

• She participated in the original song Utopia. The performance was part of the Creation Mission on Girls Planet 999.

• Yeseo formed a cell with Mashiro and Huang Xingqiao. Mashiro and Yeseo later debuted together in both Kep1er and MADEIN.

• She finished sixth in the Girls Planet 999 finale. Her final ranking secured her a position in Kep1er.

• Yeseo received 770,561 points in the finale. She also received 320,312 raw votes under the competition's voting system.

• She was Kep1er's original maknae. Born in August 2005, she was the youngest member of the group's nine-member debut lineup.

• She attended Lila Art High School. The arts-focused school has been attended by numerous Korean entertainers.

• Yeseo enjoys drawing. The hobby was listed in her official Girls Planet 999 contestant profile.

• She enjoys reading webtoons. Korean digital comics are among her reported recreational interests.

• Watching movies is another of her hobbies. Her interest in films complements her background as a child actress.

• She listed acting as one of her specialties. Unlike many contestants, Yeseo had already accumulated professional screen credits before entering Girls Planet 999.

• She has been associated with both ENFJ and ENFP MBTI results. Personality test results can change, so different profiles may list different types.

• Yeseo departed Kep1er alongside Mashiro in July 2024. The two completed the original project contract while seven members continued with Kep1er.

• She debuted with MADEIN on September 3, 2024. The group's debut EP was titled RISE, featuring the title track "UNO."

• Her MADEIN activities were suspended in December 2025. The agency announced that the group would continue promoting with four active members while Yeseo and Suhye were not participating.