diff --git a/src/conformance/property-harness.ts b/src/conformance/property-harness.ts
index 72bf66e..9862945 100644
--- a/src/conformance/property-harness.ts
+++ b/src/conformance/property-harness.ts
@@ -23,7 +23,7 @@ export const propertyTimeout = 600000
 const depthIdentifier = fc.createDepthIdentifier()
 const emptyCell: AdfNode = { content: [{ type: 'paragraph' }], type: 'tableCell' }
 const flatCommonMarkShapeWeight = 4
-export const markdownPieces = fc.constantFrom(...'aZ09 \t\n!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~é\xa0🎉', '==', '[!NOTE]', '[x]', 'ab:', 'http://', directivePrefix, `${directivePrefix}a[`, `${directivePrefix}a{`)
+export const markdownPieces = fc.constantFrom(...'aZ09 \t\n!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~é\xa0🎉日ー한', '𠀀', '==', '[!NOTE]', '[x]', 'ab:', 'http://', directivePrefix, `${directivePrefix}a[`, `${directivePrefix}a{`)
 const nestingCommonMarkShapeWeight = 21
 const spelledTypes = new Set(['text', ...Object.keys(blockNodes), ...Object.keys(inlineNodes), ...Object.keys(markAttributes)])
 
diff --git a/src/markdown/emit/plain-reduction.test.ts b/src/markdown/emit/plain-reduction.test.ts
index d162eb3..7f6ac56 100644
--- a/src/markdown/emit/plain-reduction.test.ts
+++ b/src/markdown/emit/plain-reduction.test.ts
@@ -149,6 +149,7 @@ test('spells a highlight as a == pair around the run, whatever its colour', () =
   assert.equal(plain(paragraph(text('=', highlight('#fff')), text(' '), text('a==b', highlight('#fff')))), '==\\=== ==a==b==\n')
   assert.equal(plain(paragraph(text('x'), text('y', highlight('#fff')), text(' z'))), 'xy z\n')
   assert.equal(plain(paragraph(text('この機能は'), text('日本語', highlight('#fff')), text('でのみ'))), 'この機能は==日本語==でのみ\n')
+  assert.equal(plain(paragraph(text('サーバー'), text('停止', highlight('#fff')), text('中 iPhone'), text('専用', highlight('#fff')), text('アプリ 기능은 '), text('한국어', highlight('#fff')), text('에서만'))), 'サーバー==停止==中 iPhone==専用==アプリ 기능은 ==한국어==에서만\n')
   assert.equal(plain(paragraph(text('日==本==語'))), '日\\==本\\==語\n')
 })
 
diff --git a/src/markdown/parse/plain-markdown-to-adf.test.ts b/src/markdown/parse/plain-markdown-to-adf.test.ts
index d7b9567..322fbdb 100644
--- a/src/markdown/parse/plain-markdown-to-adf.test.ts
+++ b/src/markdown/parse/plain-markdown-to-adf.test.ts
@@ -149,8 +149,11 @@ test('reads a == pair to the editor default highlight, Yellow200 #f8e6a0 in @atl
   assert.deepEqual(read('==`a`==\n'), [paragraph(text('a', code))])
   assert.deepEqual(read('x==y==z ==a == b==, (==c==) _d_==e==\n'), [paragraph(text('x==y==z '), text('a == b', highlight), text(', ('), text('c', highlight), text(') '), text('d', em), text('e', highlight))])
   assert.deepEqual(read('😀==b== ==c==😀 é==d==\n'), [paragraph(text('😀'), text('b', highlight), text(' '), text('c', highlight), text('😀 é==d=='))])
-  assert.deepEqual(read('この機能は==日本語==でのみ、中文==重点==内容、ภาษา==ไทย==ดี a==日本==b\n'), [
-    paragraph(text('この機能は'), text('日本語', highlight), text('でのみ、中文'), text('重点', highlight), text('内容、ภาษา'), text('ไทย', highlight), text('ดี a==日本==b')),
+  assert.deepEqual(read('この機能は==日本語==でのみ、中文==重点==内容、ภาษา==ไทย==ดี 𠀀==𠀁==𠀂 이 기능은 ==한국어==에서만 サーバー==停止==中 このiPhone==専用==アプリ\n'), [
+    paragraph(
+      text('この機能は'), text('日本語', highlight), text('でのみ、中文'), text('重点', highlight), text('内容、ภาษา'), text('ไทย', highlight), text('ดี 𠀀'), text('𠀁', highlight),
+      text('𠀂 이 기능은 '), text('한국어', highlight), text('에서만 サーバー'), text('停止', highlight), text('中 このiPhone'), text('専用', highlight), text('アプリ'),
+    ),
   ])
   assert.deepEqual(read('# ==h==\n\n| ==c== |\n| --- |\n'), [
     node('heading', { level: 1 }, text('h', highlight)),