diff --git a/backend/tests/Feature/ElementsEndpointTest.php b/backend/tests/Feature/ElementsEndpointTest.php
index 157f944..a914dd9 100644
--- a/backend/tests/Feature/ElementsEndpointTest.php
+++ b/backend/tests/Feature/ElementsEndpointTest.php
@@ -94,6 +94,74 @@ class ElementsEndpointTest extends TestCase
                 'longPdfPath' => '/assets/pdfs/baderech-long.pdf',
                 'youtubeUrl' => $sampleYoutubeUrl,
             ],
+            'siblingElements' => [
+                [
+                    'id' => $element->getId(),
+                    'title' => 'Baderech HaAvodah',
+                    'description' => 'A structured path for growth',
+                ],
+            ],
+        ]);
+    }
+
+    public function testReturnsSameParentSiblingElements(): void
+    {
+        $setRepository = app(SetRepository::class);
+        $elementRepository = app(ElementRepository::class);
+        $set = $this->createSet($setRepository);
+        $parentElement = $this->createElement(
+            $elementRepository,
+            $set,
+            'Baderech HaAvodah',
+            'A structured path for growth',
+            null,
+            '',
+            null,
+            null,
+            null,
+            null,
+        );
+        $firstChildElement = $this->createElement(
+            $elementRepository,
+            $set,
+            'Avodah Foundations',
+            'Foundations for steady avodah',
+            null,
+            '<p>Foundations rich text</p>',
+            null,
+            null,
+            null,
+            $parentElement,
+        );
+        $secondChildElement = $this->createElement(
+            $elementRepository,
+            $set,
+            'Daily Practice',
+            'Daily practices for growth',
+            null,
+            '',
+            null,
+            null,
+            null,
+            $parentElement,
+        );
+
+        $response = $this->getJson(
+            "/api/elements/{$firstChildElement->getId()}"
+        );
+
+        $response->assertOk();
+        $response->assertJsonPath('siblingElements', [
+            [
+                'id' => $firstChildElement->getId(),
+                'title' => 'Avodah Foundations',
+                'description' => 'Foundations for steady avodah',
+            ],
+            [
+                'id' => $secondChildElement->getId(),
+                'title' => 'Daily Practice',
+                'description' => 'Daily practices for growth',
+            ],
         ]);
     }
 
diff --git a/backend/tests/Unit/Controllers/ElementControllerTest.php b/backend/tests/Unit/Controllers/ElementControllerTest.php
index c0ce0a6..c32ac21 100644
--- a/backend/tests/Unit/Controllers/ElementControllerTest.php
+++ b/backend/tests/Unit/Controllers/ElementControllerTest.php
@@ -150,6 +150,68 @@ class ElementControllerTest extends TestCase
                 'description' => 'Daily practices for growth',
             ],
         ], $body['childElements']);
+        $this->assertSame([
+            [
+                'id' => $element->getId(),
+                'title' => 'Baderech HaAvodah',
+                'description' => 'A structured path for growth',
+            ],
+        ], $body['siblingElements']);
+    }
+
+    public function testShowReturnsSameParentSiblingPayload(): void
+    {
+        $set = $this->createSet(1, 'Baderech');
+        $parentElement = $this->createElement(
+            $set,
+            'Baderech HaAvodah',
+            'A structured path for growth',
+            null,
+            '',
+            null,
+            null,
+            null,
+            null,
+        );
+        $firstChildElement = $this->createElement(
+            $set,
+            'Avodah Foundations',
+            'Foundations for steady avodah',
+            null,
+            '<p>Foundations rich text</p>',
+            null,
+            null,
+            null,
+            $parentElement,
+        );
+        $secondChildElement = $this->createElement(
+            $set,
+            'Daily Practice',
+            'Daily practices for growth',
+            null,
+            '',
+            null,
+            null,
+            null,
+            $parentElement,
+        );
+
+        $response = $this->controller->show($firstChildElement->getId());
+
+        $this->assertEquals(200, $response->getStatusCode());
+        $body = json_decode($response->getContent(), true);
+        $this->assertSame([
+            [
+                'id' => $firstChildElement->getId(),
+                'title' => 'Avodah Foundations',
+                'description' => 'Foundations for steady avodah',
+            ],
+            [
+                'id' => $secondChildElement->getId(),
+                'title' => 'Daily Practice',
+                'description' => 'Daily practices for growth',
+            ],
+        ], $body['siblingElements']);
     }
 
     public function testShowReturns400WhenIdMissing(): void
diff --git a/backend/tests/Unit/Element/UseCases/GetElementTest.php b/backend/tests/Unit/Element/UseCases/GetElementTest.php
index d4053f5..69917bd 100644
--- a/backend/tests/Unit/Element/UseCases/GetElementTest.php
+++ b/backend/tests/Unit/Element/UseCases/GetElementTest.php
@@ -159,6 +159,134 @@ class GetElementTest extends TestCase
         );
     }
 
+    public function testReturnsSiblingElementsWithSameParent(): void
+    {
+        $set = $this->createSet(1, 'Baderech');
+        $parentElement = $this->createElement(
+            $set,
+            'Baderech HaAvodah',
+            'A structured path for growth',
+            null,
+            '<p>A structured path for growth</p>',
+            '/assets/pdfs/baderech.pdf',
+            null,
+            null,
+        );
+        $firstChildElement = $this->createElement(
+            $set,
+            'Avodah Foundations',
+            'Foundations for steady avodah',
+            null,
+            '<p>Foundations rich text</p>',
+            '/assets/pdfs/foundations.pdf',
+            null,
+            $parentElement,
+        );
+        $secondChildElement = $this->createElement(
+            $set,
+            'Daily Practice',
+            'Daily practices for growth',
+            null,
+            '<p>Daily practice rich text</p>',
+            null,
+            null,
+            $parentElement,
+        );
+        $this->createElement(
+            $set,
+            'Nested Practice',
+            'Nested description',
+            null,
+            '<p>Nested rich text</p>',
+            null,
+            null,
+            $firstChildElement,
+        );
+        $otherSet = $this->createSet(2, 'Daily Learning');
+        $otherParentElement = $this->createElement(
+            $otherSet,
+            'Other Parent',
+            'Other parent description',
+            null,
+            '<p>Other parent rich text</p>',
+            null,
+            null,
+            null,
+        );
+        $this->createElement(
+            $otherSet,
+            'Other Child',
+            'Other child description',
+            null,
+            '<p>Other child rich text</p>',
+            null,
+            null,
+            $otherParentElement,
+        );
+
+        $result = $this->getElement->execute(new GetElementRequest(
+            id: $firstChildElement->getId(),
+        ));
+        $siblingElements = $result->getSiblingElements();
+
+        $this->assertCount(2, $siblingElements);
+        $this->assertSame(
+            $firstChildElement->getId(),
+            $siblingElements[0]->getId(),
+        );
+        $this->assertSame(
+            'Avodah Foundations',
+            $siblingElements[0]->getTitle(),
+        );
+        $this->assertSame(
+            'Foundations for steady avodah',
+            $siblingElements[0]->getDescription(),
+        );
+        $this->assertSame(
+            $secondChildElement->getId(),
+            $siblingElements[1]->getId(),
+        );
+        $this->assertSame('Daily Practice', $siblingElements[1]->getTitle());
+        $this->assertSame(
+            'Daily practices for growth',
+            $siblingElements[1]->getDescription(),
+        );
+    }
+
+    public function testReturnsRootElementAsOnlySibling(): void
+    {
+        $set = $this->createSet(1, 'Baderech');
+        $rootElement = $this->createElement(
+            $set,
+            'Baderech HaAvodah',
+            'A structured path for growth',
+            null,
+            '<p>A structured path for growth</p>',
+            '/assets/pdfs/baderech.pdf',
+            null,
+            null,
+        );
+        $this->createElement(
+            $set,
+            'Avodah Foundations',
+            'Foundations for steady avodah',
+            null,
+            '<p>Foundations rich text</p>',
+            '/assets/pdfs/foundations.pdf',
+            null,
+            $rootElement,
+        );
+
+        $result = $this->getElement->execute(new GetElementRequest(
+            id: $rootElement->getId(),
+        ));
+        $siblingElements = $result->getSiblingElements();
+
+        $this->assertCount(1, $siblingElements);
+        $this->assertSame($rootElement->getId(), $siblingElements[0]->getId());
+        $this->assertSame('Baderech HaAvodah', $siblingElements[0]->getTitle());
+    }
+
     public function testThrowsWhenIdMissing(): void
     {
         $this->expectException(BadRequestException::class);