\documentclass[11pt]{oblivoir}
\usepackage{floatrow, amsthm, amsmath, amssymb, kotex, bigints, tikz, subcaption, ragged2e}

\begin{document}
\begin{figure}[h]
    \centering
    \begin{tikzpicture}[scale=2.5]
\draw[thin, color=black] (-1, 0) -- (1,0) node [anchor=east];
\draw[thin, color=black] (-1, 0) -- (-1, 2) node [anchor=north];
\draw[thin, color=black] (1, 0) -- (1, 2) node [anchor=north];
\draw[thin, color=black] (-1, 2) -- (1,2) node [anchor=east];

\node [left] at (-1, 1) {\Bbb{D}};
\node [above] at (0, 2) {\Bbb{D}};

\draw[thin, color=black,<-] (-1, 1.5) -- (-0.55,1.5) node [anchor = north];
\draw[thin, color=black,->] (-0.15, 1.5) -- (0.3,1.5) node [anchor = north];
\draw[thin, color=black,<-] (0.5, 0) -- (0.5,0.55) node [anchor = east];
\draw[thin, color=black,->] (0.5, 0.75) -- (0.5,1.3) node [anchor = east];
\draw[thin, color=black] (-1, 1.3) -- (0.3,1.3) node [anchor = north];
\draw[thin, color=black] (0.3, 0) -- (0.3, 1.3) node [anchor=east];
\draw[thin, color=black] (-0.1, 0) -- (-0.1, 1.3) node [anchor=east];
\draw[thin, color=black] (-1, 0.9) -- (0.3,0.9) node [anchor = north];

\node at (-0.55, 0.45) {\Bbb{E$\times$E}};
\node at (-0.55, 1.1) {\Bbb{E$\times$F}};
\node at (0.1, 1.1) {\Bbb{F$\times$F}};
\node at (0.1, 0.45) {\Bbb{F$\times$E}};
\node at (-0.35, 1.5) {\Bbb{E$\cup$F}};
\node at (0.5, 0.65) {\Bbb{E$\cup$F}};
\end{tikzpicture}
\end{figure}


\end{document}

통피가 부탁한거

나도 혼자서 2주동안 이것저것 해본게 다임 좀 많이 허접함