Cai Jin Xin

Name: Cai Jin Xin
Native name: 蔡锦昕
Also Known as: 차이 진신, Cai Jinxin
Nationality: Chinese
Gender: Male
Born: November 7, 2003
Age: 22

Cai Jin Xin is a Chinese trainee under GRID Entertainment. He is enrolled at the University of Hong Kong and Harvard University.

In December 2022, he entered the Mnet survival show "Boys Planet" representing Top Class Entertainment, where he was eliminated in the 8th episode, ranking 31st. Then, in July 2023, he participated in the Tencent Video survival show "The Next 2023", where he ended up ranking 24th. Later, in June 2025, he entered the Mnet survival show "Boys II Planet" representing EE-Media, where he was eliminated in the 2nd episode after ranking "NO STAR".

In 2026, he moved to GRID Entertainment, where he was set to debut in their upcoming boy group sometime in 2026, but it was later revealed through their documentary "Idol Till I Die" that their debut had been cancelled due to the company's agency representative finding the trainees unprepared to make a debut and labeling the debut project as a "failure".

In October 2026, it was announced that "Idol Till I Die" would be getting a season 2, renewing the trainees' chances at debut.

(Source: kisskh) Edit Biography

Year	Title	#	Role	Rating
2026	You Are My Fateful Love Chinese Drama, 2026, 30 eps Chen Hui (Support Role)	30	Chen Hui Support Role	7.8

Year	Title	#	Role	Rating
2026	Idol till I Die Season 2 Korean TV Show, 2026, 10 eps (Regular Member)	10	Regular Member	0.0
2026	Idol Till I Die Korean TV Show, 2026, 6 eps (Regular Member)	6	Regular Member	7.7
2025	Delicacy Discovery Chinese TV Show, 2025, 12 eps (Regular Member)	12	Regular Member	0.0
2025	Boys II Planet C Chinese TV Show, 2025, 2 eps [Contestant] (Regular Member)	2	[Contestant] Regular Member	7.5
2025	Boys II Planet Korean TV Show, 2025, 13 eps [Contestant] (Regular Member)	13	[Contestant] Regular Member	7.5
2025	Great Escape Season 7 Chinese TV Show, 2025, 13 eps [NPC] (Ep. 9) (Guest)	13	[NPC] (Ep. 9) Guest	7.9
2024	Mango Newcomers Class: Partner Season Chinese TV Show, 2024, 12 eps (Regular Member)	12	Regular Member	0.0
2024	Game of Cubes: The New Utopia Chinese TV Show, 2024, 27 eps (Ep. 6) (Regular Member)	27	(Ep. 6) Regular Member	7.4
2023	The Next off Work Hours Chinese TV Show, 2023, 10 eps (Regular Member)	10	Regular Member	7.4
2023	The Next 2023 Chinese TV Show, 2023, 10 eps [Contestant] (Regular Member)	10	[Contestant] Regular Member	7.5
2023	Boys Planet Korean TV Show, 2023, 12 eps [Contestant] (Regular Member)	12	[Contestant] Regular Member	8.3