diff --git a/src/lang/en.ts b/src/lang/en.ts
index a248cdb7..686c2a07 100644
--- a/src/lang/en.ts
+++ b/src/lang/en.ts
@@ -125,6 +125,7 @@ export const languageEnglish = {
         dynamicAssets: "If enabled, if the asset name is not found when processing data, it will try to find the closest asset name by using vector search and replace it with the closest asset name.",
         dynamicAssetsEditDisplay: "If enabled, the dynamic assets will be applied to the Modify Display stage too. however, this can cause performance issues.",
         nickname: "Nickname would used be in {{char}} or <char> in chat instead of character's name if it is set.",
+        useRegexLorebook: "If enabled, it will use regex for lorebook search, instead of string matching. it uses /regex/flags format.",
     },
     setup: {
         chooseProvider: "Choose AI Provider",
@@ -606,4 +607,5 @@ export const languageEnglish = {
     risupresetDesc: "Risupreset format is a format specifically designed for RisuAI presets.",
     jsonDesc: "JSON format is a format that is easy to read and write for both humans and machines.",
     nickname: "Nickname",
+    useRegexLorebook: "Use Regex"
 }
\ No newline at end of file
diff --git a/src/lib/SideBars/LoreBook/LoreBookData.svelte b/src/lib/SideBars/LoreBook/LoreBookData.svelte
index 71f6bcac..db7fe2f3 100644
--- a/src/lib/SideBars/LoreBook/LoreBookData.svelte
+++ b/src/lib/SideBars/LoreBook/LoreBookData.svelte
@@ -56,7 +56,7 @@
             <span class="text-textcolor mt-6">{language.name} <Help key="loreName"/></span>
             <TextInput size="sm" bind:value={value.comment}/>
             {#if !lorePlus}
-                {#if !value.alwaysActive}
+                {#if !value.alwaysActive && !value.useRegex}
                     <span class="text-textcolor mt-6">{language.activationKeys} <Help key="loreActivationKey"/></span>
                     <span class="text-xs text-textcolor2">{language.activationKeysInfo}</span>
                     <TextInput size="sm" bind:value={value.key}/>
@@ -95,12 +95,18 @@
             <div class="flex items-center mt-4">
                 <Check bind:check={value.alwaysActive} name={language.alwaysActive}/>
             </div>
-            {#if !lorePlus}
+            {#if !lorePlus && !value.useRegex}
                 <div class="flex items-center mt-2">
                     <Check bind:check={value.selective} name={language.selective}/>
                     <Help key="loreSelective" name={language.selective}/>
                 </div>
             {/if}
+            {#if !lorePlus && !value.alwaysActive}
+                <div class="flex items-center mt-2">
+                    <Check bind:check={value.useRegex} name={language.useRegexLorebook}/>
+                    <Help key="useRegexLorebook" name={language.useRegexLorebook}/>
+                </div>
+            {/if}
             {#if !lorePlus}
                 <div class="flex items-center mt-2 mb-6">
                     {#if value.activationPercent === undefined || value.activationPercent === null}