diff --git a/frontend/context/HoverMetadataContext.ts b/frontend/context/HoverMetadataContext.ts
new file mode 100644
index 0000000..f5409e0
--- /dev/null
+++ b/frontend/context/HoverMetadataContext.ts
@@ -0,0 +1,12 @@
+import { DotMetadata } from '@/models/combinedDefinition'
+import React from 'react'
+
+export type HoverDotMetadataContextProps = {
+  hoverDotMetadata: DotMetadata | null
+  setHoverDotMetadata: React.Dispatch<React.SetStateAction<DotMetadata | null>>
+}
+
+export const HoverDotMetadataContext = React.createContext<HoverDotMetadataContextProps>({
+  hoverDotMetadata: null,
+  setHoverDotMetadata: () => {},
+})
diff --git a/frontend/pages/DefinitionList/Show.tsx b/frontend/pages/DefinitionList/Show.tsx
index c26566c..f825356 100644
--- a/frontend/pages/DefinitionList/Show.tsx
+++ b/frontend/pages/DefinitionList/Show.tsx
@@ -17,6 +17,8 @@ import { MetadataDialog } from './components/MetadataDialog'
 import type { DialogProps } from './components/dialog'
 import { RecentModulesContext } from '@/context/RecentModulesContext'
 import { Module } from '@/models/module'
+import { HoverDotMetadataContext } from '@/context/HoverMetadataContext'
+import { DotMetadata } from '@/models/combinedDefinition'
 
 export const Show: React.FC = () => {
   const [selectedDefinitionIds, setSelectedDefinitionIds] = useBitIdHash()
@@ -26,6 +28,7 @@ export const Show: React.FC = () => {
     concentrate: false,
     onlyModule: false,
   })
+  const [hoverDotMetadata, setHoverDotMetadata] = useState<DotMetadata | null>(null)
   const {
     data: combinedDefinition,
     isLoading,
@@ -40,45 +43,47 @@ export const Show: React.FC = () => {
   return (
     <Wrapper>
       <RecentModulesContext.Provider value={{ recentModules, setRecentModules }}>
-        <StyledSidebar contentsMinWidth="0px" gap={0}>
-          <StyledAside>
-            <DefinitionList selectedDefinitionIds={selectedDefinitionIds} setSelectedDefinitionIds={setSelectedDefinitionIds} />
-          </StyledAside>
-          <StyledSection>
-            <MetadataDialog
-              isOpen={visibleDialog?.type === 'metadataDialog'}
-              dotMetadata={visibleDialog?.type === 'metadataDialog' ? visibleDialog.metadata : null}
-              top={visibleDialog?.type === 'metadataDialog' ? visibleDialog.top : 0}
-              left={visibleDialog?.type === 'metadataDialog' ? visibleDialog.left : 0}
-              onClose={onCloseDialog}
-              setVisibleDialog={setVisibleDialog}
-              mutateCombinedDefinition={mutateCombinedDefinition}
-            />
-            {isLoading ? (
-              <CenterStack>
-                <Loading text="Loading..." alt="Loading" />
-              </CenterStack>
-            ) : !combinedDefinition ? (
-              <CenterStack>
-                <p>No data</p>
-              </CenterStack>
-            ) : (
-              <StyledStack>
-                <DefinitionGraph
-                  combinedDefinition={combinedDefinition}
-                  graphOptions={graphOptions}
-                  setGraphOptions={setGraphOptions}
-                  visibleDialog={visibleDialog}
-                  setVisibleDialog={setVisibleDialog}
-                />
-                <StyledDefinitionSources
-                  combinedDefinition={combinedDefinition}
-                  mutateCombinedDefinition={mutateCombinedDefinition}
-                />
-              </StyledStack>
-            )}
-          </StyledSection>
-        </StyledSidebar>
+        <HoverDotMetadataContext.Provider value={{ hoverDotMetadata, setHoverDotMetadata }}>
+          <StyledSidebar contentsMinWidth="0px" gap={0}>
+            <StyledAside>
+              <DefinitionList selectedDefinitionIds={selectedDefinitionIds} setSelectedDefinitionIds={setSelectedDefinitionIds} />
+            </StyledAside>
+            <StyledSection>
+              <MetadataDialog
+                isOpen={visibleDialog?.type === 'metadataDialog'}
+                dotMetadata={visibleDialog?.type === 'metadataDialog' ? visibleDialog.metadata : null}
+                top={visibleDialog?.type === 'metadataDialog' ? visibleDialog.top : 0}
+                left={visibleDialog?.type === 'metadataDialog' ? visibleDialog.left : 0}
+                onClose={onCloseDialog}
+                setVisibleDialog={setVisibleDialog}
+                mutateCombinedDefinition={mutateCombinedDefinition}
+              />
+              {isLoading ? (
+                <CenterStack>
+                  <Loading text="Loading..." alt="Loading" />
+                </CenterStack>
+              ) : !combinedDefinition ? (
+                <CenterStack>
+                  <p>No data</p>
+                </CenterStack>
+              ) : (
+                <StyledStack>
+                  <DefinitionGraph
+                    combinedDefinition={combinedDefinition}
+                    graphOptions={graphOptions}
+                    setGraphOptions={setGraphOptions}
+                    visibleDialog={visibleDialog}
+                    setVisibleDialog={setVisibleDialog}
+                  />
+                  <StyledDefinitionSources
+                    combinedDefinition={combinedDefinition}
+                    mutateCombinedDefinition={mutateCombinedDefinition}
+                  />
+                </StyledStack>
+              )}
+            </StyledSection>
+          </StyledSidebar>
+        </HoverDotMetadataContext.Provider>
       </RecentModulesContext.Provider>
     </Wrapper>
   )
diff --git a/frontend/pages/DefinitionList/components/DefinitionGraph/ScrollableSvg.tsx b/frontend/pages/DefinitionList/components/DefinitionGraph/ScrollableSvg.tsx
index 23e1a08..b53a56b 100644
--- a/frontend/pages/DefinitionList/components/DefinitionGraph/ScrollableSvg.tsx
+++ b/frontend/pages/DefinitionList/components/DefinitionGraph/ScrollableSvg.tsx
@@ -1,4 +1,4 @@
-import React, { FC, useCallback, useEffect, useRef, useState } from 'react'
+import React, { FC, useCallback, useContext, useEffect, useRef, useState } from 'react'
 import { ReactSVGPanZoom, TOOL_NONE, TOOL_PAN } from 'react-svg-pan-zoom'
 import { ReactSvgPanZoomLoader } from 'react-svg-pan-zoom-loader'
 import styled from 'styled-components'
@@ -11,6 +11,8 @@ import { extractSvgSize, getClosestAndSmallestElement, toSVGPoint } from '@/util
 import { DialogProps } from '../dialog'
 
 import type { Tool, Value } from 'react-svg-pan-zoom'
+import { HoverDotMetadataContext } from '@/context/HoverMetadataContext'
+import { color } from '@/constants/theme'
 
 type Props = {
   combinedDefinition: CombinedDefinition
@@ -41,7 +43,7 @@ export const ScrollableSvg: FC<Props> = ({ combinedDefinition, setVisibleDialog
 
   const [value, setValue] = useState<Value>({} as Value) // NOTE: react-svg-pan-zoom supported blank object as a initial value. but types is not supported.
   const [tool, setTool] = useState<Tool>(TOOL_PAN)
-  const [hoverMetadata, setHoverMetadata] = useState<DotMetadata | null>(null)
+  const { hoverDotMetadata, setHoverDotMetadata } = useContext(HoverDotMetadataContext)
   const [svg, setSvg] = useState<string>('')
 
   const svgSize = extractSvgSize(svg)
@@ -77,9 +79,9 @@ export const ScrollableSvg: FC<Props> = ({ combinedDefinition, setVisibleDialog
     }
 
     const onClickGeometry = (event: MouseEvent) => {
-      if (hoverMetadata) {
+      if (hoverDotMetadata) {
         event.preventDefault()
-        setVisibleDialog({ type: 'metadataDialog', metadata: hoverMetadata, left: event.clientX, top: event.clientY })
+        setVisibleDialog({ type: 'metadataDialog', metadata: hoverDotMetadata, left: event.clientX, top: event.clientY })
       }
     }
 
@@ -88,12 +90,12 @@ export const ScrollableSvg: FC<Props> = ({ combinedDefinition, setVisibleDialog
     return () => {
       document.removeEventListener('click', onClickGeometry)
     }
-  }, [tool, hoverMetadata, setVisibleDialog])
+  }, [tool, hoverDotMetadata, setVisibleDialog])
 
   // On hover .node, .edge, .cluster
   useEffect(() => {
     if (tool !== TOOL_NONE) {
-      setHoverMetadata(null)
+      setHoverDotMetadata(null)
       return
     }
 
@@ -102,9 +104,9 @@ export const ScrollableSvg: FC<Props> = ({ combinedDefinition, setVisibleDialog
 
       if (element) {
         const metadata = combinedDefinition.dotMetadata.find(({ id }) => element.id === id)
-        setHoverMetadata(metadata ?? null)
+        setHoverDotMetadata(metadata ?? null)
       } else {
-        setHoverMetadata(null)
+        setHoverDotMetadata(null)
       }
     }
 
@@ -136,7 +138,7 @@ export const ScrollableSvg: FC<Props> = ({ combinedDefinition, setVisibleDialog
       }
     }
 
-    setHoverMetadata((prev) => findNewMetadata(prev))
+    setHoverDotMetadata((prev) => findNewMetadata(prev))
     setVisibleDialog((prev) => {
       if (prev?.type === 'metadataDialog') {
         const newMetadata = findNewMetadata(prev.metadata)
@@ -150,12 +152,16 @@ export const ScrollableSvg: FC<Props> = ({ combinedDefinition, setVisibleDialog
         return prev
       }
     })
-  }, [combinedDefinition.dotMetadata, setVisibleDialog, setHoverMetadata])
+  }, [combinedDefinition.dotMetadata, setVisibleDialog, setHoverDotMetadata])
+
+  useEffect(() => {
+    console.log(hoverDotMetadata?.id)
+  }, [hoverDotMetadata])
 
   if (!svg) return null
 
   return (
-    <Wrapper ref={observeRef} $idOnHover={hoverMetadata?.id}>
+    <Wrapper ref={observeRef} $idOnHover={hoverDotMetadata?.id}>
       <ReactSvgPanZoomLoader
         svgXML={svg}
         render={(content) => (
@@ -198,7 +204,10 @@ const Wrapper = styled.div<{ $idOnHover: string | undefined }>`
     props.$idOnHover &&
     `
     #${props.$idOnHover} {
-      stroke-width: 3;
+      ellipse {
+        stroke-width: 4;
+        stroke: ${color.DANGER};
+      }
     }
 
     cursor: pointer;
diff --git a/frontend/pages/DefinitionList/components/DefinitionSources/DefinitionSources.tsx b/frontend/pages/DefinitionList/components/DefinitionSources/DefinitionSources.tsx
index a2ac1b1..dcec61e 100644
--- a/frontend/pages/DefinitionList/components/DefinitionSources/DefinitionSources.tsx
+++ b/frontend/pages/DefinitionList/components/DefinitionSources/DefinitionSources.tsx
@@ -1,4 +1,4 @@
-import { FC, useCallback, useContext, useMemo, useState } from 'react'
+import { FC, useCallback, useContext, useEffect, useMemo, useState, createRef } from 'react'
 import styled from 'styled-components'
 
 import { Link } from '@/components/Link'
@@ -8,7 +8,6 @@ import {
   Cluster,
   EmptyTableBody,
   FaCircleInfoIcon,
-  FaCopyIcon,
   FaPencilIcon,
   Table,
   TableReel,
@@ -26,6 +25,8 @@ import { RecentModulesContext } from '@/context/RecentModulesContext'
 import { SourceModulesComboBox } from '@/components/SourceModulesComboBox'
 import { UpdateSourceModulesButton } from '@/components/UpdateSourceModulesButton'
 import { SourceMemoInput } from '@/components/SourceMemoInput'
+import React from 'react'
+import { HoverDotMetadataContext } from '@/context/HoverMetadataContext'
 
 const sortTypes = ['asc', 'desc', 'none'] as const
 
@@ -38,16 +39,48 @@ type SortState = {
 
 type DefinitionSourceTrProps = {
   source: Source
+  combinedDefinition: CombinedDefinition
   mutateCombinedDefinition: () => void
 }
 
-const DefinitionSourceTr: FC<DefinitionSourceTrProps> = ({ source, mutateCombinedDefinition }) => {
+// Return tr
+const isTr = (event: MouseEvent, trRef: HTMLTableRowElement): boolean => {
+  const tr = (event.target as HTMLElement).closest<Element>('tr')
+
+  return tr === trRef
+}
+
+const DefinitionSourceTr: FC<DefinitionSourceTrProps> = ({ source, combinedDefinition, mutateCombinedDefinition }) => {
+  const ref = createRef<HTMLTableRowElement>()
   const { recentModules, setRecentModules } = useContext(RecentModulesContext)
+  const { setHoverDotMetadata } = useContext(HoverDotMetadataContext)
   const [editingMemo, setEditingMemo] = useState<boolean>(false)
   const [editingModules, setEditingModules] = useState<boolean>(false)
 
+  // On hover .node, .edge, .cluster
+  useEffect(() => {
+    if (!combinedDefinition || !ref.current) return
+
+    const currentRef = ref.current
+
+    const onMouseMove = (event: MouseEvent) => {
+      if (!isTr(event, currentRef)) return
+
+      const dotMetadata = combinedDefinition.dotMetadata.find((d) => d.type === 'source' && d.sourceName === source.sourceName)
+
+      console.log(`set ${dotMetadata?.id}`)
+      setHoverDotMetadata(dotMetadata ?? null)
+    }
+
+    document.addEventListener('mousemove', onMouseMove)
+
+    return () => {
+      document.removeEventListener('mousemove', onMouseMove)
+    }
+  }, [combinedDefinition?.dotMetadata, setHoverDotMetadata])
+
   return (
-    <tr>
+    <tr ref={ref}>
       <Td>
         <Link to={path.sources.show(source.sourceName)}>{source.sourceName}</Link>
       </Td>
@@ -187,6 +220,7 @@ export const DefinitionSources: FC<DefinitionSourcesProps> = ({ combinedDefiniti
                   <DefinitionSourceTr
                     key={source.sourceName}
                     source={source}
+                    combinedDefinition={combinedDefinition}
                     mutateCombinedDefinition={mutateCombinedDefinition}
                   />
                 ))}