\documentclass{standalone}
\usepackage{kotex}
\usepackage{tikz}
\usetikzlibrary{shapes.geometric}
\setmainhangulfont{Noto Sans KR}
\begin{document}
\begin{tikzpicture}
\path[draw]
(0,0)
-- (1,0)
;
\end{tikzpicture}
\end{document}









