diff --git a/nx01-warp-manifestor/src/main/java/love/distributedrebirth/nx01/warp/manifestor/manifest/WarpManifestX0Section.java b/nx01-warp-manifestor/src/main/java/love/distributedrebirth/nx01/warp/manifestor/manifest/WarpManifestX0Section.java
index 74c3b7e..0fdc6c6 100644
--- a/nx01-warp-manifestor/src/main/java/love/distributedrebirth/nx01/warp/manifestor/manifest/WarpManifestX0Section.java
+++ b/nx01-warp-manifestor/src/main/java/love/distributedrebirth/nx01/warp/manifestor/manifest/WarpManifestX0Section.java
@@ -77,6 +77,14 @@ public interface WarpManifestX0Section<T, H extends WarpManifestX0HeaderField<T,
 		return Optional.of(attr.get().getBody());
 	}
 	
+	default T getAttributeBodyNullable(T attributeName) {
+		return getAttributeBodyNullable(attributeName, null);
+	}
+	
+	default T getAttributeBodyNullable(T attributeName, T defaultValue) {
+		return getAttributeBody(attributeName).orElse(defaultValue);
+	}
+	
 	List<T> getRemarks();
 	
 	S withRemark(T remark);