KKTeX
Kanbun typesetting for (u)pLaTeX and LuaLaTeX.
TikZ-based Japanese-style notebook ruled lines for LaTeX.
Generate answer fields in tests and exams.
LaTeX commands for enclosing characters in circles, squares, diamonds, or brackets.
Provides underlines and other highlighting which can be used in vertical mode.
Flexible ruler and annotation commands with key-value support and vertical writing compatibility.