Dongho was the most active member of the group, appearing in a great many reality shows and other productions.

[2] He became a trainee for NH Media and was chosen as one of the potential members for an upcoming boyband.

His first acting role was a middle-school student in Villain and Widow,[3] and performed in the MBC drama Royal Family.

[5][6] Along with co-U-KISS member Yeo Hoonmin he was cast for a TV-movie series, Holy Land (2012).

He stated he and his wife did not separate due to a bad relationship so they will take responsibility for their child as parents despite not being a married couple.