Ji Yun-seo is a South Korean singer and former member of the boy group EVNNE. Known among Chinese fans by the nickname "Cousin" due to being the cousin of TWICE member Im Na-yeon. In 2023, he participated in the first season of the Mnet survival show Boys Planet as a trainee under Yuehua Entertainment. In September of the same year, he officially debuted as a sub-vocalist for the project group EVNNE under Jellyfish Entertainment. Following the group's disbandment in December 2025, he returned to...