diff --git a/packages/hydrooj/package.json b/packages/hydrooj/package.json
index 22b648d63..9893b602b 100644
--- a/packages/hydrooj/package.json
+++ b/packages/hydrooj/package.json
@@ -1,6 +1,6 @@
 {
     "name": "hydrooj",
-    "version": "3.4.30",
+    "version": "3.4.31",
     "bin": "bin/hydrooj.js",
     "main": "src/loader",
     "module": "src/loader",
diff --git a/packages/hydrooj/src/handler/domain.ts b/packages/hydrooj/src/handler/domain.ts
index f78689d75..ee3c20f9d 100644
--- a/packages/hydrooj/src/handler/domain.ts
+++ b/packages/hydrooj/src/handler/domain.ts
@@ -231,7 +231,7 @@ class DomainJoinApplicationsHandler extends ManageHandler {
     async get() {
         const r = await domain.getRoles(this.domain);
         const roles = r.map((role) => role._id).sort();
-        this.response.body.rolesWithText = roles.map((role) => [role, role]);
+        this.response.body.rolesWithText = roles.filter((i) => !['default', 'guest'].includes(i)).map((role) => [role, role]);
         this.response.body.joinSettings = domain.getJoinSettings(this.domain, roles);
         this.response.body.expirations = { ...domain.JOIN_EXPIRATION_RANGE };
         if (!this.response.body.joinSettings) {
diff --git a/packages/ui-default/locales/zh.yaml b/packages/ui-default/locales/zh.yaml
index 7e88c93d4..609392dd6 100644
--- a/packages/ui-default/locales/zh.yaml
+++ b/packages/ui-default/locales/zh.yaml
@@ -753,6 +753,7 @@ Test data comes from: 测试数据来自
 Testdata Config: 测试数据配置
 Testdata: 测试数据
 Text: 文本
+The 'default' role applies to ALL REGISTERED USER.: default 角色作用于<b>所有已注册用户</b>
 The homework's deadline is due but in extension. You can still submit for this problem but your score will be penalized.: 作业已超过截止时间，但仍在延期时间内。您递交题目将无法获得全部分数。
 The invitation code to enter to successfully join the domain. You can only use letters and numbers in the code and it should not be longer than 64 characters.: 加入此域的邀请码。您只能使用字母和数字，并且不能长于 64 个字符。
 The invitation code you provided is invalid.: 您提供的邀请码无效。
@@ -894,6 +895,7 @@ You have permissions to create problems for this domain.: 您有权限为此域
 You have uncompleted domain creation operation. You can click "Continue" to finish the creation.: 您有未完成的创建域操作。您可以点击“继续”来完成创建。
 You haven't attended this contest yet.: 您还没有参加本次比赛。
 You haven't claimed this homework yet.: 您还未认领过该作业。
+You may want to create a new role in 'Manage Role' page.: 您可能希望在右侧管理角色面板中添加一个新角色。
 You need to enter the invitation code to join the domain.: 您需要输入邀请码来加入此域。
 You received a system message, click here to view.: 您收到一条系统通知，点击查看。
 You're not logged in.: 您没有登录。
diff --git a/packages/ui-default/package.json b/packages/ui-default/package.json
index 709741c83..fcce512f9 100644
--- a/packages/ui-default/package.json
+++ b/packages/ui-default/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hydrooj/ui-default",
-  "version": "4.32.6",
+  "version": "4.32.7",
   "author": "undefined <i@undefined.moe>",
   "license": "AGPL-3.0",
   "main": "hydro.js",
diff --git a/packages/ui-default/templates/domain_join_applications.html b/packages/ui-default/templates/domain_join_applications.html
index 3724562cd..ef504dba1 100644
--- a/packages/ui-default/templates/domain_join_applications.html
+++ b/packages/ui-default/templates/domain_join_applications.html
@@ -2,29 +2,37 @@
 {% block domain_content %}
 {% if joinSettings %}
 <div class="section">
-    <div class="section__header">
-      <h1 class="section__title">{{ _('Information') }}</h1>
-    </div>
-    <div class="section__body typo">
-      <p>{{ _('User can join this domain by visiting the following URL') }}:</p>
-      <pre><code class="language-data">{{ url_prefix|safe }}domain/join?domainId={{ handler.args.domainId }}</code></pre>
+  <div class="section__header">
+    <h1 class="section__title">{{ _('Information') }}</h1>
+  </div>
+  <div class="section__body typo">
+    <p>{{ _('User can join this domain by visiting the following URL') }}:</p>
+    <pre><code class="language-data">{{ url_prefix|safe }}domain/join?domainId={{ handler.args.domainId }}</code></pre>
     {% if joinSettings['method'] == model.domain.JOIN_METHOD_CODE %}
       <p>{{ _('Or, with automatically filled invitation code') }}:</p>
       <pre><code class="language-data">{{ url_prefix|safe }}domain/join?domainId={{ handler.args.domainId }}&code={{ joinSettings.code|urlencode }}</code></pre>
     {% endif %}
-    {% if not joinSettings['expire'] %}
+    {% if joinSettings.expire %}
       <br/>
       <blockquote class="note">
         {{ (_('The link will be expired at {0}').format(datetimeSpan(joinSettings.expire, relative=false)))|safe }}
       </blockquote>
     {% endif %}
-    </div>
   </div>
+</div>
 {% endif %}
 <div class="section">
   <div class="section__header">
     <h1 class="section__title">{{ _('Settings') }}</h1>
   </div>
+  {% if rolesWithText.length == 1 %}
+    <div class="section__body typo">
+      <blockquote class="warn">
+        <p>{{ _("The 'default' role applies to ALL REGISTERED USER.")|safe }}</p>
+        <p>{{ _("You may want to create a new role in 'Manage Role' page.")|safe }}</p>
+      </blockquote>
+    </div>
+  {% endif %}
   <div class="section__body">
     <form method="POST">
       {{ form.form_select({
diff --git a/packages/ui-default/templates/domain_permission.html b/packages/ui-default/templates/domain_permission.html
index 80762c3d2..5e48ee20d 100644
--- a/packages/ui-default/templates/domain_permission.html
+++ b/packages/ui-default/templates/domain_permission.html
@@ -5,6 +5,14 @@
   <div class="section__header">
     <h1 class="section__title">{{ _('{0}: Permissions').format(domain.name) }}</h1>
   </div>
+  {% if roles.length == 3 %}
+    <div class="section__body typo">
+      <blockquote class="warn">
+        <p>{{ _("The 'default' role applies to ALL REGISTERED USER.")|safe }}</p>
+        <p>{{ _("You may want to create a new role in 'Manage Role' page.")|safe }}</p>
+      </blockquote>
+    </div>
+  {% endif %}
   <div class="section__body no-padding domain-users">
     <table class="data-table">
       <colgroup>