Choi Sihyuk

 (최시혁) is a former member of NIK. He is also a member of the Korean group Apeace.

On March 26, 2021, it was announced that his company and NIK's management didn't come to an agreement regarding his promotions, and as a result he would stop his activities as a NIK member.

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 * G-EGG Final Ranking: #6