%%% to be compiled with LuaLaTeX and afterwards
%%% converted with dvisvgm (with pdf option)
\documentclass{standalone}
\usepackage{fontspec}
\setmainfont{UnifrakturMaguntia.ttf}
\setlength{\parindent}{0pt}
\begin{document}
\fontsize{500pt}{500pt}\selectfont\llap{\phantom{P}}u
\end{document}