diff --git a/components/character/CharacterModal/index.module.scss b/components/character/CharacterModal/index.module.scss
index f2f35bf6..bbd5f676 100644
--- a/components/character/CharacterModal/index.module.scss
+++ b/components/character/CharacterModal/index.module.scss
@@ -1,78 +1,32 @@
-.Character.DialogContent {
-  gap: $unit;
-  min-width: 480px;
+.mods {
+  display: flex;
+  flex-direction: column;
+  gap: $unit-4x;
+  padding: 0 $unit-4x $unit-2x;
 
-  @include breakpoint(phone) {
-    min-width: inherit;
-  }
-
-  .DialogHeader {
-    transition: 0.18s padding-top ease-in-out;
-    position: sticky;
-    top: 0;
-
-    &.Scrolled {
-      border-bottom: 1px solid rgba(0, 0, 0, 0.2);
-      box-shadow: 0 1px 12px rgba(0, 0, 0, 0.34);
-      padding-top: $unit-2x;
-    }
-
-    img {
-      transition: 0.2s width ease-in-out;
-      width: $unit-6x !important;
-    }
-
-    .DialogTitle {
-      font-size: $font-large;
-    }
-
-    .SubTitle {
-      display: none;
-    }
-  }
-
-  .mods {
+  section {
     display: flex;
     flex-direction: column;
-    gap: $unit-4x;
-    padding: 0 $unit-4x $unit-2x;
+    gap: $unit-half;
 
-    section {
-      display: flex;
-      flex-direction: column;
-      gap: $unit-half;
-
-      &.inline {
-        align-items: center;
-        flex-direction: row;
-        justify-content: space-between;
-
-        h3 {
-          margin: 0;
-        }
-      }
+    &.inline {
+      align-items: center;
+      flex-direction: row;
+      justify-content: space-between;
 
       h3 {
-        color: $grey-55;
-        font-size: $font-small;
-        margin-bottom: $unit;
-      }
-
-      select {
-        background-color: $grey-90;
+        margin: 0;
       }
     }
 
-    .Button {
-      font-size: $font-regular;
-      padding: ($unit * 1.5) ($unit-2x);
-      width: 100%;
+    h3 {
+      color: $grey-55;
+      font-size: $font-small;
+      margin-bottom: $unit;
+    }
 
-      &.btn-disabled {
-        background: $grey-90;
-        color: $grey-70;
-        cursor: not-allowed;
-      }
+    select {
+      background-color: $grey-90;
     }
   }
 }
diff --git a/components/character/CharacterModal/index.tsx b/components/character/CharacterModal/index.tsx
index f93ef9d5..edfc961f 100644
--- a/components/character/CharacterModal/index.tsx
+++ b/components/character/CharacterModal/index.tsx
@@ -2,15 +2,11 @@
 import React, { PropsWithChildren, useEffect, useState } from 'react'
 import { useRouter } from 'next/router'
 import { useTranslation } from 'next-i18next'
-import classNames from 'classnames'
+import isEqual from 'lodash/isEqual'
 
 // UI dependencies
-import {
-  Dialog,
-  DialogClose,
-  DialogTitle,
-  DialogTrigger,
-} from '~components/common/Dialog'
+import Alert from '~components/common/Alert'
+import { Dialog, DialogTrigger } from '~components/common/Dialog'
 import DialogContent from '~components/common/DialogContent'
 import Button from '~components/common/Button'
 import SelectWithInput from '~components/common/SelectWithInput'
@@ -29,7 +25,6 @@ const emptyExtendedMastery: ExtendedMastery = {
 const MAX_AWAKENING_LEVEL = 9
 
 // Styles and icons
-import CrossIcon from '~public/icons/Cross.svg'
 import styles from './index.module.scss'
 
 // Types
@@ -39,6 +34,8 @@ import {
   GridCharacterObject,
 } from '~types'
 import AwakeningSelectWithInput from '~components/mastery/AwakeningSelectWithInput'
+import DialogHeader from '~components/common/DialogHeader'
+import DialogFooter from '~components/common/DialogFooter'
 
 interface Props {
   gridCharacter: GridCharacter
@@ -54,6 +51,7 @@ const CharacterModal = ({
   onOpenChange,
   updateCharacter,
 }: PropsWithChildren<Props>) => {
+  // Router and localization
   const router = useRouter()
   const locale =
     router.locale && ['en', 'ja'].includes(router.locale) ? router.locale : 'en'
@@ -67,39 +65,27 @@ const CharacterModal = ({
   const headerRef = React.createRef<HTMLDivElement>()
   const footerRef = React.createRef<HTMLDivElement>()
 
-  // Classes
-  const headerClasses = classNames({
-    DialogHeader: true,
-    Short: true,
-  })
+  // State: Component
+  const [alertOpen, setAlertOpen] = useState(false)
 
-  // Callbacks and Hooks
-  useEffect(() => {
-    setOpen(modalOpen)
-  }, [modalOpen])
-
-  // Character properties: Perpetuity
+  // State: Data
   const [perpetuity, setPerpetuity] = useState(false)
-
-  // Character properties: Ring
   const [rings, setRings] = useState<CharacterOverMastery>({
     1: { ...emptyExtendedMastery, modifier: 1 },
     2: { ...emptyExtendedMastery, modifier: 2 },
     3: emptyExtendedMastery,
     4: emptyExtendedMastery,
   })
-
-  // Character properties: Earrings
   const [earring, setEarring] = useState<ExtendedMastery>(emptyExtendedMastery)
-
-  // Character properties: Awakening
   const [awakening, setAwakening] = useState<Awakening>()
   const [awakeningLevel, setAwakeningLevel] = useState(1)
-
-  // Character properties: Transcendence
   const [transcendenceStep, setTranscendenceStep] = useState(0)
 
   // Hooks
+  useEffect(() => {
+    setOpen(modalOpen)
+  }, [modalOpen])
+
   useEffect(() => {
     if (gridCharacter.aetherial_mastery) {
       setEarring({
@@ -150,10 +136,80 @@ const CharacterModal = ({
     return object
   }
 
+  // Methods: Convenience
+  function hasBeenModified() {
+    const rings = ringsChanged()
+    const aetherialMastery = aetherialMasteryChanged()
+    const awakening = awakeningChanged()
+
+    return (
+      rings ||
+      aetherialMastery ||
+      awakening ||
+      gridCharacter.perpetuity !== perpetuity
+    )
+  }
+
+  function ringsChanged() {
+    // Create an empty ExtendedMastery object
+    const emptyRingset: CharacterOverMastery = {
+      1: { ...emptyExtendedMastery, modifier: 1 },
+      2: { ...emptyExtendedMastery, modifier: 2 },
+      3: emptyExtendedMastery,
+      4: emptyExtendedMastery,
+    }
+
+    // Check if the current ringset is empty on the current GridCharacter and our local state
+    const isEmptyRingset =
+      gridCharacter.over_mastery === undefined && isEqual(emptyRingset, rings)
+
+    // Check if the ringset in local state is different from the one on the current GridCharacter
+    const ringsChanged = !isEqual(gridCharacter.over_mastery, rings)
+
+    // Return true if the ringset has been modified and is not empty
+    return ringsChanged && !isEmptyRingset
+  }
+
+  function aetherialMasteryChanged() {
+    // Create an empty ExtendedMastery object
+    const emptyAetherialMastery: ExtendedMastery = {
+      modifier: 0,
+      strength: 0,
+    }
+
+    // Check if the current earring is empty on the current GridCharacter and our local state
+    const isEmptyRingset =
+      gridCharacter.aetherial_mastery === undefined &&
+      isEqual(emptyAetherialMastery, earring)
+
+    // Check if the earring in local state is different from the one on the current GridCharacter
+    const aetherialMasteryChanged = !isEqual(
+      gridCharacter.aetherial_mastery,
+      earring
+    )
+
+    // Return true if the earring has been modified and is not empty
+    return aetherialMasteryChanged && !isEmptyRingset
+  }
+
+  function awakeningChanged() {
+    // Check if the awakening in local state is different from the one on the current GridCharacter
+    const awakeningChanged =
+      !isEqual(gridCharacter.awakening.type, awakening) ||
+      gridCharacter.awakening.level !== awakeningLevel
+
+    // Return true if the awakening has been modified and is not empty
+    return awakeningChanged
+  }
+
   // Methods: UI state management
   function handleOpenChange(open: boolean) {
-    setOpen(open)
-    onOpenChange(open)
+    if (hasBeenModified()) {
+      setAlertOpen(!open)
+    } else {
+      setOpen(open)
+      onOpenChange(open)
+    }
   }
 
   // Methods: Receive data from components
@@ -167,21 +223,10 @@ const CharacterModal = ({
   ) {
     setEarring({
       modifier: earringModifier,
-      strength: earringStrength,
+      strength: earringModifier > 0 ? earringStrength : 0,
     })
   }
 
-  function handleCheckedChange(checked: boolean) {
-    setPerpetuity(checked)
-  }
-
-  async function handleUpdateCharacter() {
-    await updateCharacter(prepareObject())
-
-    setOpen(false)
-    if (onOpenChange) onOpenChange(false)
-  }
-
   function receiveAwakeningValues(id: string, level: number) {
     setAwakening(gridCharacter.object.awakenings.find((a) => a.id === id))
     setAwakeningLevel(level)
@@ -191,113 +236,145 @@ const CharacterModal = ({
     setFormValid(isValid)
   }
 
-  const ringSelect = () => {
-    return (
-      <section>
-        <h3>{t('modals.characters.subtitles.ring')}</h3>
-        <RingSelect
-          gridCharacter={gridCharacter}
-          sendValues={receiveRingValues}
-        />
-      </section>
-    )
+  // Methods: Event handlers
+  function handleCheckedChange(checked: boolean) {
+    setPerpetuity(checked)
   }
 
-  const earringSelect = () => {
-    const earringData = elementalizeAetherialMastery(gridCharacter)
+  async function handleUpdateCharacter() {
+    await updateCharacter(prepareObject())
 
-    return (
-      <section>
-        <h3>{t('modals.characters.subtitles.earring')}</h3>
-        <SelectWithInput
-          object="earring"
-          dataSet={earringData}
-          selectValue={earring.modifier ? earring.modifier : 0}
-          inputValue={earring.strength ? earring.strength : 0}
-          sendValidity={receiveValidity}
-          sendValues={receiveEarringValues}
-        />
-      </section>
-    )
+    setOpen(false)
+    if (onOpenChange) onOpenChange(false)
   }
 
-  const awakeningSelect = () => {
-    return (
-      <section>
-        <h3>{t('modals.characters.subtitles.awakening')}</h3>
-        <AwakeningSelectWithInput
-          dataSet={gridCharacter.object.awakenings}
-          awakening={gridCharacter.awakening.type}
-          level={gridCharacter.awakening.level}
-          defaultAwakening={
-            gridCharacter.object.awakenings.find(
-              (a) => a.slug === 'character-balanced'
-            )!
-          }
-          maxLevel={MAX_AWAKENING_LEVEL}
-          sendValidity={receiveValidity}
-          sendValues={receiveAwakeningValues}
-        />
-      </section>
-    )
+  function close() {
+    setAlertOpen(false)
+    setOpen(false)
+    onOpenChange(false)
   }
 
-  const perpetuitySwitch = () => {
-    return (
-      <section className="inline">
-        <h3>{t('modals.characters.subtitles.permanent')}</h3>
-        <Switch onCheckedChange={handleCheckedChange} checked={perpetuity} />
-      </section>
-    )
-  }
+  // Constants: Rendering
+  const confirmationAlert = (
+    <Alert
+      message={
+        <span>
+          You will lose all changes to{' '}
+          <strong>{gridCharacter.object.name[locale]}</strong> if you continue.
+          <br />
+          <br />
+          Are you sure you want to continue without saving?
+        </span>
+      }
+      open={alertOpen}
+      primaryActionText="Close"
+      primaryAction={close}
+      cancelActionText="Nevermind"
+      cancelAction={() => setAlertOpen(false)}
+    />
+  )
 
+  const ringSelect = (
+    <section>
+      <h3>{t('modals.characters.subtitles.ring')}</h3>
+      <RingSelect
+        gridCharacter={gridCharacter}
+        sendValues={receiveRingValues}
+      />
+    </section>
+  )
+
+  const earringSelect = (
+    <section>
+      <h3>{t('modals.characters.subtitles.earring')}</h3>
+      <SelectWithInput
+        object="earring"
+        dataSet={elementalizeAetherialMastery(gridCharacter)}
+        selectValue={
+          gridCharacter.aetherial_mastery
+            ? gridCharacter.aetherial_mastery.modifier
+            : 0
+        }
+        inputValue={
+          gridCharacter.aetherial_mastery
+            ? gridCharacter.aetherial_mastery.strength
+            : 0
+        }
+        sendValidity={receiveValidity}
+        sendValues={receiveEarringValues}
+      />
+    </section>
+  )
+
+  const awakeningSelect = (
+    <section>
+      <h3>{t('modals.characters.subtitles.awakening')}</h3>
+      <AwakeningSelectWithInput
+        dataSet={gridCharacter.object.awakenings}
+        awakening={gridCharacter.awakening.type}
+        level={gridCharacter.awakening.level}
+        defaultAwakening={
+          gridCharacter.object.awakenings.find(
+            (a) => a.slug === 'character-balanced'
+          )!
+        }
+        maxLevel={MAX_AWAKENING_LEVEL}
+        sendValidity={receiveValidity}
+        sendValues={receiveAwakeningValues}
+      />
+    </section>
+  )
+
+  const perpetuitySwitch = (
+    <section className={styles.inline}>
+      <h3>{t('modals.characters.subtitles.permanent')}</h3>
+      <Switch onCheckedChange={handleCheckedChange} checked={perpetuity} />
+    </section>
+  )
+
+  // Methods: Rendering
   return (
-    <Dialog open={open} onOpenChange={handleOpenChange}>
-      <DialogTrigger asChild>{children}</DialogTrigger>
-      <DialogContent
-        className="Character"
-        headerref={headerRef}
-        footerref={footerRef}
-        onOpenAutoFocus={(event) => event.preventDefault()}
-        onEscapeKeyDown={() => {}}
-      >
-        <div className={headerClasses} ref={headerRef}>
-          <img
-            alt={gridCharacter.object.name[locale]}
-            className="DialogImage"
-            src={`${process.env.NEXT_PUBLIC_SIERO_IMG_URL}/chara-square/${gridCharacter.object.granblue_id}_01.jpg`}
+    <>
+      {confirmationAlert}
+      <Dialog open={open} onOpenChange={handleOpenChange}>
+        <DialogTrigger asChild>{children}</DialogTrigger>
+        <DialogContent
+          className="character"
+          headerref={headerRef}
+          footerref={footerRef}
+          onOpenAutoFocus={(event) => event.preventDefault()}
+          onEscapeKeyDown={() => {}}
+        >
+          <DialogHeader
+            ref={headerRef}
+            title={gridCharacter.object.name[locale]}
+            subtitle={t('modals.characters.title')}
+            image={{
+              src: `${process.env.NEXT_PUBLIC_SIERO_IMG_URL}/chara-square/${gridCharacter.object.granblue_id}_01.jpg`,
+              alt: gridCharacter.object.name[locale],
+            }}
           />
-          <div className="DialogTop">
-            <DialogTitle className="SubTitle">
-              {t('modals.characters.title')}
-            </DialogTitle>
-            <DialogTitle className="DialogTitle">
-              {gridCharacter.object.name[locale]}
-            </DialogTitle>
-          </div>
-          <DialogClose className="DialogClose" asChild>
-            <span>
-              <CrossIcon />
-            </span>
-          </DialogClose>
-        </div>
-
-        <div className="mods">
-          {perpetuitySwitch()}
-          {ringSelect()}
-          {earringSelect()}
-          {awakeningSelect()}
-        </div>
-        <div className="DialogFooter" ref={footerRef}>
-          <Button
-            bound={true}
-            onClick={handleUpdateCharacter}
-            disabled={!formValid}
-            text={t('modals.characters.buttons.confirm')}
+          <section className={styles.mods}>
+            {perpetuitySwitch}
+            {ringSelect}
+            {earringSelect}
+            {awakeningSelect}
+          </section>
+          <DialogFooter
+            ref={footerRef}
+            rightElements={[
+              <Button
+                bound={true}
+                onClick={handleUpdateCharacter}
+                key="confirm"
+                disabled={!formValid}
+                text={t('modals.characters.buttons.confirm')}
+              />,
+            ]}
           />
-        </div>
-      </DialogContent>
-    </Dialog>
+        </DialogContent>
+      </Dialog>
+    </>
   )
 }