]
\documentclass{ltjltxdoc}
\GetFileInfo{ltjclasses.dtx}
-\usepackage[kozuka-pr6n]{luatexja-preset}
+\usepackage{fontspec}
+\usepackage[ipaex,nfssonly]{luatexja-preset}
\usepackage{unicode-math}
\setmathfont{Latin Modern Math}
\usepackage[unicode]{hyperref}