Hyun-Moon Jun is a pre-made Sim from Midnight Hollow. He lives with his fellow bandmates Jin Sang Kim, Young Jae Sung and Nadia Cho and is good friends with all of his bandmates. His name also suggests a Korean heritage, which is shared by two of his bandmates.
Hyun-Moon is employed in the Music career as a Band Manager. Outside of his home, he knows his boss, Joaquin Dorsey and Josie Crane. He has 6 points in Logic, 3 in Guitar and one in Charisma skills at the start of the game. He may be a reference to Skinny Disco of Industrial Metal band Deathstars, although Skinny Disco is Swedish while Hyun is Korean.