% documentclass=========================================================
\documentclass{ltjsarticle}% compiler: lualatex-------------------------
%=======================================================================
% preamble==============================================================
% 書式------------------------------------------------------------------
\usepackage{luatexja}% lualatexの日本語設定
\usepackage{tcolorbox,ulem,calc,ifthen,color,graphics}%
\newlength{\blocklength}%
\newtcbox{subblock}
{%
%enhanced,%
on line,%
%boxrule=0.5pt,%
sharp corners,%
left=0em,right=0em,top=0em,bottom=0em,%
colback=white,%
%tcbox raise=-4.5em,%
%borderline west={0.1pt}{-0.1pt}{black},%
%frame style={left color=black,right color=white,top color=white,bottom color=white}%
}%
\newcommand{\block}[2]%
{%
\settowidth{\blocklength}{\uline{#1}}%
\uline{#1}\hspace{-\blocklength+0.5em}
\raisebox{-1.7em}[1em][0em]%
{%
\subblock%
{%
\raisebox{-0.5em}[1em][0em]%
{%
\hspace{-0.5em}\sout{\quad}#2%
}%
}%
}%
}%
% document================================================================
\begin{document}%
\normalsize%
There is something \block{to}{目的} talk about.\vspace{1cm}%
\Large%
There is something \block{to}{目的} talk about.\vspace{1cm}%
\LARGE%
There is something \block{to}{目的} talk about.\vspace{1cm}%
\end{document}%
\documentclass[
tate,book,
% 括弧は段落頭二分行頭天付き, 句読点ぶら下げ有効
open_bracket_pos=nibu_tentsuki,hanging_punctuation]{jlreq}
%\usepackage{luatexja} % ltjclasses, ltjsclasses を使うときはこの行不要
\usepackage{bxpapersize}
\usepackage[morisawa-pr6n,deluxe,expert,jis]{luatexja-preset}
%\usepackage{luatexja-otf}
%\usepackage[uplatex,jis2004,expert,deluxe,scale=0.962216]{otf}
% ルビ設定
\usepackage{pxrubrica}
\rubysetup{<Hf>}
\rubyfontsetup{\rubyfamily}
\begin{document}
%\jruby{愛}{あい}してるを\jruby{知}{し}りたい。
愛してるを\jruby{知}{し}りたい。
\end{document}