The chief of the restaurant On is Joonhyung Kim.
Joonhyung Kim studied culinary arts at Culinary institute of America(CIA).
Also, for 2 years, Joonhyung Kim worked with many chefs and then, finally he opened his own Restaurnat Siot Seoul.
In this year, he changed the name of his restaurant ''Siot Seoul'' to ''On''
He try to put his passion in his dishes and service for his guests.