1 \documentclass{article}
2 \usepackage{luatexja-fontspec}
3 \setmainjfont{IPAmjMincho}
6 abc๐๐๐๐๐๐๐๐๐๐๐๐๐๐๐๐\\
7 abc๐ใใ๐ฌใ๐ฐใใ๐ธใ๐ฟใ๐
ใ๐ใ๐\\
8 abc๐ใใ๐ฌใ๐ฐใใ๐ธใ๐ฟใ๐
ใ๐ใ๐\\
9 abc๐ใ๐ใ๐ ใ๐กใ๐ขใ๐ฃใ๐คใ๐ฅใ๐ฆใ๐งใ๐จใ\\
10 This Latin text should be rendered in crimson.