Yoo Seungeon was born in Busan, South Korea and is the middle child. Before debuting, he trained under SM Entertainment and later Yuehua Entertainment, where he developed skills in dance, vocals, and stage performance. He gained public recognition as a contestant on Boys Planet (2023), where he finished #16 overall, becoming one of the most notable trainees outside the final lineup. Following the show, Seungeon debuted in EVNNE under Jellyfish Entertainment, serving as a vocalist and dancer. Known for his sharp stage presence and expressive performance style, he quickly became recognized for his versatility and strong variety sense. He now rejoins his fellow company mates in the And2ble lineup.

• Strength: 07 • Intelligence: 07 • Charm: 08 • Chaos: 09

emoji 🐿, he is known for his athletic background, including archery, which was used in his teaser and interest in anime. he can play piano. Summer as his favorite season and zero as his favorite number. He is also known for his ability to mimic Doraemon, a skill he has demonstrated in broadcasts.