[3] Originally a ten-piece group, Wooyeop and Taeseon left the group in November 2019 and filed suit against TS Entertainment for violations of child welfare legislation, alleging abuse, assault, and extortion.

[5] A Japanese version of "Don't Stop the Dancing" was included and they debuted in Japan on November 22, 2017.

[11] On November 4, Wooyeop and Taeseon filed a criminal complaint against TS Entertainment with the Seoul Metropolitan Police Agency for violating the Child Welfare Law, citing child abuse, assault, and money extortion.

[15][16] In January 2021, TRCNG's label, TS Entertainment, privately shut down and deleted its website, leaving the fate of the group unknown.

[17] On March 28, 2022, the members of TRCNG released individual letters via social media to confirm the group's disbandment, as well as thank the fans for their support.