Inseong appeared in YG's "Mix Nine" and placed 26th.
Inseong was a Big Hit Entertainment trainee alongside Seoham, then moved to FNC Entertainment before debuting in YNB Entertainment.
He appeared with Seungjun in Bestie’s “Excuse Me” MV.
Inseong's ideal type is someone with a kind heart, who is tall and cute.
Inseong's favorite artists are Forty, Xia Junsu, Kim Beom Soo and Na Yoon Kwon.