Suggestions for luwa-ul

The following packages have something in common with the package luwa-ul. The packages are ordered in decreasing similarity.

Package lua-ul: Underlining for LuaLaTeX
Package href-ul: Underscored LaTeX hyperlinks
Package japanese-mathformulas: Compiling basic math formulas in Japanese using LuaLaTeX
Package ushort: Shorter (and longer) underlines and underbars
Package umoline: Underline text allowing line breaking
Package kanaparser: Kana parser for LuaTeX
Package underlin: Underlined running heads
Package handstroke: Eye-catching hand-drawn underline
Package arcs2: Arcs over and under text or math
Package evangelion-jfm: A Japanese font metric supporting many advanced features
Package kanbun: Typeset kanbun-kundoku with support for kanbun annotation
Package dashundergaps: Produce gaps that are underlined, dotted or dashed
Package ulem: Package for underlining
Package soulpos: A fancy means of underlining
Package noitcrul: Improved underlines in mathematics
Package wiggly: Draw wiggly lines under text
Package underlin-generic: Multi-word underlining
Package luatexja: Typeset Japanese with Lua(La)TeX
Package formation-latex-ul: Introductory LaTeX course in French
Package babel-japanese: Babel support for Japanese
Package japanese-otf-uptex: Support for Japanese OTF files in upLaTeX
Package autopuncitems: Automatically punctuate lists
Package luamodulartables: Generate modular addition and multiplication tables
Package asternote: Annotation symbols enclosed in square brackets and marked with an asterisk
Package jpnedumathsymbols: Mathematical equation representation in Japanese education
Package chuushaku: Flexible book notes in Japanese
Package convert-jpfonts: Convert half-width Japanese to full-width beautifully
Package outoruby: Ruby with line break support for Japanese text
Package platex-tools: pLaTeX standard tools bundle
Package fancymag: A LuaLaTeX package for academic magazines and scientific
Package datestamp: Fixed date-stamps with LuaLaTeX