Yusei is a member of a Jpop group Fantastics from Exile Tribe, managed by LDH. Despite being musically inclined, up until college he only focused on soccer. When he got injured and couldn't play, he took it as an opportunity to pursue singing. He participated in the competition Best Body Japan 2016 and placed 2nd in the category Mister Best Body Super Model. In 2017, when LDH announced Vocal Battle Audition 5 to find vocalists for one of their groups, Fantastics, Yusei auditioned and was one of the winners along with Nakajima Sota. He made his debut in Fantastics in 2018. In 2021, he started his acting career by playing one of the lead roles for the first time in the drama "MY BEAUTIFUL MAN". Yusei has since taken on both lead and supporting roles in various dramas and films. In September 2022, Yusei won the "Outstanding Asian Star Prize" at the Seoul International Drama Awards 2022 for his role in MY BEAUTIFUL MAN, selected by fans worldwide from 175 actors across five Asian countries. In December 2022, he received the "Best New Actor Award" and the "Topic Actor Pair Award" at the WEIBO Account Festival 2022. Yagi made history in 2023 by winning the "Outstanding Asian Star Prize" again at the Seoul International Drama Awards 2023, becoming the first celebrity to win the award in consecutive years. In 2024, fashion magazine ViVi revealed its 2024 mid-year "ViVi National Treasure Level Handsome" rankings showcasing the most handsome men across various categories. Yusei topped the "NOW" division, securing Hall of Fame status with consecutive wins. 八木勇征(1997년생, Tokyo, Japan) 는 배우로, 대표작으로 극장판 아름다운 그: 이터널, 隣のステラ, 僕らは人生で一回だけ魔法が使える가 있으며, 그 외에도 러브드 원, 아름다운 그, 최애가 상사가 되어서, 수상한 파트너, 하이앤로우 더 워스트 크로스, 18/40 ~꿈 사랑 두 여자~, 호스트 상속해 버렸습니다, SAKAMOTO DAYS, 미나미 군이 연인!?, 혼활 1000개 노크, 누마루. 미나토구 여고생, 推しが上司になりまして フルスロットル 등 다양한 작품에 출연했다. 특히 2026년에는 러브드 원에도 참여해서 활동중이다. (오뜨랑에서 실시간으로 번역된 한글 프로필도 확인할 수 있어요) 2026년 &TEAM vs FANTASTICS에 출연했다. 2026년 사카모토 데이즈에서 Shishiba 역을 맡았다. 2026년 러브드 원에서 Honda Masato 역을 맡았다.