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Cai Xin (蔡鑫; also known as C.I) is a Chinese singer under One Cool Jacso Entertainment. He was a pre-debut member of the Korean boy group OCJ NEWBIES, and a former member of the Korean boy group LIMITLESS.

He is best known for being a contestant on the reality survival show Asia Super Young.


2019–2021: LIMITLESS[]

In November, 2019 he joined the Korean boy group LIMITLESS. In 2021, he left the group for unknown reasons.

2022–2023: OCJ NEWBIES and Asia Super Young[]

On May 25, 2022, he was introduced as a member of the Korean pre-debut group OCJ NEWBIES.[1] However, he did not make it to the final line-up.

On August 8, 2023, he was announced as a contestant on the Chinese reality show Asia Super Young.[2]


Survival shows[]


  • His MBTI personality type is ENFP.[3][4]
  • His role model is BTS.[3]
  • His hobbies include basketball, skateboarding and surfing.[3][4]
  • His specialties are surfing and playing the yo-yo.[3][4]




Official links[]