I released plugins for remark / markdown-it: GitHub - tats-u/markdown-cjk-friendly: Make CommonMark more friendly for Japanese/Chinese/Korean (CommonMark next specification draft)—plugins & patched packages Specifications draft is: markdown-cjk-friendly/specification.md at main · tats-u/markdown-cjk-friendly · GitHub GitHub issue (feedbacks can be also here): Emphasis with CJK punctuation · Issue #650 · commonmark/commonmark-spec · GitHub Your feedback is very welcome.