diff --git a/WsNovelParser/WsNovelParser.vcxproj.user b/WsNovelParser/WsNovelParser.vcxproj.user
index 5716425..71dafd7 100644
--- a/WsNovelParser/WsNovelParser.vcxproj.user
+++ b/WsNovelParser/WsNovelParser.vcxproj.user
@@ -3,7 +3,7 @@
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <LocalDebuggerWorkingDirectory>$(SolutionDir)$(Platform)\$(Configuration)\</LocalDebuggerWorkingDirectory>
     <DebuggerFlavor>WindowsLocalDebugger</DebuggerFlavor>
-    <LocalDebuggerCommandArguments>--path "E:\novel-set" --dest F:\novelout</LocalDebuggerCommandArguments>
+    <LocalDebuggerCommandArguments>--path "E:\CustomNovels\科学+修仙+创造世界" --dest F:\novelout</LocalDebuggerCommandArguments>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <LocalDebuggerCommandArguments>--path "D:\Projects\Cpp\WsNovelParser\x64\test_file" --dest E:\</LocalDebuggerCommandArguments>
diff --git a/libParse/parse_novel.cpp b/libParse/parse_novel.cpp
index 4ef354e..c4b8e08 100644
--- a/libParse/parse_novel.cpp
+++ b/libParse/parse_novel.cpp
@@ -393,11 +393,14 @@ std::shared_ptr<FragmentNode> FragmentLayerCheck::_sets_fill(std::shared_ptr<con
 					auto ptr = _sets_fill(nis);
 					if (ptr) list << ptr;
 				}
-				for (auto nitr = ++list.begin(); nitr != list.end(); nitr++)
-					(*(nitr-1))->appendNext(*nitr);
 
-				if (list.size())
+				if (list.size()) {
+					for (auto nitr = ++list.begin(); nitr != list.end(); nitr++) {
+						auto prev = *(nitr - 1);
+						prev->appendNext(*nitr);
+					}
 					this->_story_start << list.first();
+				}
 			}
 			break;
 		default:
@@ -427,7 +430,6 @@ void FragmentLayerCheck::node_relayer(std::shared_ptr<FragmentNode> node, int cu
 		for (auto nis : node->referNodes())
 			node_relayer(nis, curr_num + 1);
 	}
-	qDebug() << node->bind()->element()->signature() << node->layerNumber();
 }
 
 
@@ -455,15 +457,16 @@ void FragmentLayerCheck::story_layer_check(std::shared_ptr<const ast_gen::Elemen
 	std::copy_if(fragms_list.begin(), fragms_list.end(), std::back_inserter(real_elms),
 		[](std::shared_ptr<const ast_gen::ElementAccess> ins) { return ins->element()->typeMark() == (int) NovelNode::FragmentSlice; });
 
-	for (auto curr = ++real_elms.begin(); curr != real_elms.end(); ++curr) {
-		auto prev_it = curr - 1;
-		auto curr_it = curr;
-		for (; curr_it != real_elms.end(); ++curr_it) {
-			auto curr_sign = (*curr_it)->element()->signature();
-			auto prev_sign = (*prev_it)->element()->signature();
-			sibling_element_compair(story_nm, _node_set[prev_sign], _node_set[curr_sign]);
+	if (real_elms.size())
+		for (auto curr = ++real_elms.begin(); curr != real_elms.end(); ++curr) {
+			auto prev_it = curr - 1;
+			auto curr_it = curr;
+			for (; curr_it != real_elms.end(); ++curr_it) {
+				auto curr_sign = (*curr_it)->element()->signature();
+				auto prev_sign = (*prev_it)->element()->signature();
+				sibling_element_compair(story_nm, _node_set[prev_sign], _node_set[curr_sign]);
+			}
 		}
-	}
 }
 
 void FragmentLayerCheck::sibling_element_compair(const QString& story, std::shared_ptr<const FragmentNode> prev, std::shared_ptr<const FragmentNode> curr) {
@@ -479,8 +482,8 @@ void FragmentLayerCheck::sibling_element_compair(const QString& story, std::shar
 	if (!curr_childs.size() || !prev_childs.size())
 		return;
 
-	auto max_e0 = *std::max_element(prev_childs.begin(), prev_childs.end(), 
-		[](std::shared_ptr<const FragmentNode> a, std::shared_ptr<const FragmentNode> b){ 
+	auto max_e0 = *std::max_element(prev_childs.begin(), prev_childs.end(),
+		[](std::shared_ptr<const FragmentNode> a, std::shared_ptr<const FragmentNode> b) {
 			return a->layerNumber() < b->layerNumber();
 		});
 	auto min_e1 = *std::min_element(curr_childs.begin(), curr_childs.end(),