%#! lualatex
\documentclass{article}

%\makeatletter
%\let\ltj@orig@DeclareFontShape@=\DeclareFontShape@
%\def\DeclareFontShape@#1#2#3#4#5#6{%
%\immediate\typeout{DFS |#1|#2|#3|#4|#5|#6|}%
%\ltj@orig@DeclareFontShape@{#1}{#2}{#3}{#4}{#5}{#6}%
%}
%\makeatother


\usepackage{luatexja}
\usepackage{luatexja-fontspec}
\usepackage{booktabs,array,lltjext}

\defaultfontfeatures{Numbers=OldStyle}
\setmainfont{TeXGyreTermes}
\setsansfont{TeXGyreHeros}

\defaultjfontfeatures{Scale=1.2}
\setmainjfont[BoldFont=GothicBBB-Medium,NoEmbed,
]{Ryumin-Light}

\normalsize
\usepackage[margin=25mm,a4paper]{geometry}

\begin{document}

\section{fontspecのテスト}

\makeatletter

ちょっとあいう。え、お\textbf{あいう（：）}
\hbox{\tate
ちょっとあいう。え、お\textbf{あいう（：）}}

\end{document}