Hyuk shared an Instagram post which read, "Our 'Mother's friend's son' (a Korean slang term referring to males with a friendly image) Dong Hyun, who used to come cheer me on at my movie filming set with drinks, has debuted~ Be healthy in your promotions, you body, and your heart, and let's become respectable singers together, even though this hyung also lacks. Fighting!!"
In Hyuk's posts, the idol sunbae proudly holds up a signed copy of MXM's 'Unmix' from his hoobae, in addition to a closer shot of the album. Kim Dong Hyun also shared the same snapshot on Brand New Boys's official Instagram, revealing that the two are from the same home town!
What a good sunbae-hoobae relationship!