diff --git a/app/controllers/users_controller.rb b/app/controllers/users_controller.rb
index 657bb63edc2..c49c5e3747d 100644
--- a/app/controllers/users_controller.rb
+++ b/app/controllers/users_controller.rb
@@ -83,6 +83,7 @@ def create_free_user!
       UserMailer.welcome(@user).deliver_now
       notify_to_mentors(@user)
       notify_to_chat(@user)
+      Newspaper.publish(:student_or_trainee_create, @user) if @user.trainee?
       redirect_to root_url, notice: 'サインアップメールをお送りしました。メールからサインアップを完了させてください。'
     else
       render 'new'
@@ -123,6 +124,7 @@ def create_user!
         UserMailer.welcome(@user).deliver_now
         notify_to_mentors(@user)
         notify_to_chat(@user)
+        Newspaper.publish(:student_or_trainee_create, @user) if @user.student?
         redirect_to root_url, notice: 'サインアップメールをお送りしました。メールからサインアップを完了させてください。'
       else
         render 'new'
diff --git a/app/models/times_channel_creator.rb b/app/models/times_channel_creator.rb
new file mode 100644
index 00000000000..25e293ada42
--- /dev/null
+++ b/app/models/times_channel_creator.rb
@@ -0,0 +1,14 @@
+# frozen_string_literal: true
+
+class TimesChannelCreator
+  def call(user)
+    raise ArgumentError, "#{user.login_name}は現役生または研修生ではありません。" unless user.student_or_trainee?
+
+    times_channel = Discord::TimesChannel.new(user.login_name)
+    if times_channel.save
+      user.update(times_id: times_channel.id)
+    else
+      Rails.logger.warn "[Discord API] #{user.login_name}の分報チャンネルが作成できませんでした。"
+    end
+  end
+end
diff --git a/config/initializers/newspaper.rb b/config/initializers/newspaper.rb
index e31740ace81..7450ea71ec0 100644
--- a/config/initializers/newspaper.rb
+++ b/config/initializers/newspaper.rb
@@ -26,6 +26,8 @@
   Newspaper.subscribe(:correct_answer_save, CorrectAnswerNotifier.new)
 
   Newspaper.subscribe(:user_create, SignUpNotifier.new)
+  Newspaper.subscribe(:student_or_trainee_create, TimesChannelCreator.new)
+
   Newspaper.subscribe(:regular_event_update, RegularEventUpdateNotifier.new)
 
   Newspaper.subscribe(:graduation_update, GraduationNotifier.new)
diff --git a/db/migrate/20230208073717_add_times_id_to_users.rb b/db/migrate/20230208073717_add_times_id_to_users.rb
new file mode 100644
index 00000000000..17b6430b0f5
--- /dev/null
+++ b/db/migrate/20230208073717_add_times_id_to_users.rb
@@ -0,0 +1,5 @@
+class AddTimesIdToUsers < ActiveRecord::Migration[6.1]
+  def change
+    add_column :users, :times_id, :string, comment: 'Snowflake ID'
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 10a323059c6..02661c34854 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2022_12_24_091715) do
+ActiveRecord::Schema.define(version: 2023_02_08_073717) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -655,6 +655,7 @@
     t.string "profile_job"
     t.text "profile_text"
     t.string "feed_url"
+    t.string "times_id", comment: "Snowflake ID"
     t.index ["course_id"], name: "index_users_on_course_id"
     t.index ["email"], name: "index_users_on_email", unique: true
     t.index ["github_id"], name: "index_users_on_github_id", unique: true
diff --git a/test/integration/discord/users_controller_test.rb b/test/integration/discord/users_controller_test.rb
new file mode 100644
index 00000000000..7afcee23350
--- /dev/null
+++ b/test/integration/discord/users_controller_test.rb
@@ -0,0 +1,131 @@
+# frozen_string_literal: true
+
+require 'test_helper'
+
+module Discord
+  class UsersControllerTest < ActionDispatch::IntegrationTest
+    test 'POST create by student' do
+      Card.stub(:new, -> { FakeCard.new }) do
+        Subscription.stub(:new, -> { FakeSubscription.new }) do
+          Discord::TimesChannel.stub(:new, ->(_) { ValidTimesChannel.new }) do
+            assert_difference 'User.students.count', 1 do
+              post users_path,
+                   params: {
+                     user: {
+                       adviser: 'false',
+                       trainee: 'false',
+                       company_id: '',
+                       login_name: 'Piyopiyo-student',
+                       email: 'piyopiyo-student@example.com',
+                       name: '現役生です',
+                       name_kana: 'ゲンエキセイデス',
+                       description: '現役生と言います。よろしくお願いします。',
+                       job: 'part_time_worker',
+                       os: 'linux',
+                       experience: 'inexperienced',
+                       password: 'passW0rd1234',
+                       password_confirmation: 'passW0rd1234',
+                       coc: 1,
+                       tos: 2
+                     }
+                   }
+            end
+          end
+        end
+      end
+      assert_redirected_to root_url
+
+      student = User.find_by(login_name: 'Piyopiyo-student')
+      assert_not_nil student.times_id
+    end
+
+    test 'POST create by trainee' do
+      Discord::TimesChannel.stub(:new, ->(_) { ValidTimesChannel.new }) do
+        assert_difference 'User.trainees.count', 1 do
+          post users_path,
+               params: {
+                 user: {
+                   adviser: 'false',
+                   trainee: 'true',
+                   company_id: '123456789',
+                   login_name: 'Piyopiyo-trainee',
+                   email: 'piyopiyo-trainee@example.com',
+                   name: '研修生です',
+                   name_kana: 'ケンシュウセイデス',
+                   description: '研修生と言います。よろしくお願いします。',
+                   job: 'office_worker',
+                   os: 'windows_wsl2',
+                   experience: 'ruby',
+                   password: 'passW0rd1234',
+                   password_confirmation: 'passW0rd1234',
+                   coc: 1,
+                   tos: 2
+                 }
+               }
+        end
+      end
+      assert_redirected_to root_url
+
+      trainee = User.find_by(login_name: 'Piyopiyo-trainee')
+      assert_not_nil trainee.times_id
+    end
+
+    test 'POST create by adviser' do
+      Discord::TimesChannel.stub(:new, ->(_) { ValidTimesChannel.new }) do
+        assert_difference 'User.advisers.count', 1 do
+          post users_path,
+               params: {
+                 user: {
+                   adviser: 'true',
+                   trainee: 'false',
+                   company_id: '123456789',
+                   login_name: 'Piyopiyo-adviser',
+                   email: 'piyopiyo-adviser@example.com',
+                   name: 'アドバイザーです',
+                   name_kana: 'アドバイザーデス',
+                   description: 'アドバイザーと言います。よろしくお願いします。',
+                   password: 'passW0rd1234',
+                   password_confirmation: 'passW0rd1234',
+                   coc: 1,
+                   tos: 2
+                 }
+               }
+        end
+      end
+      assert_redirected_to root_url
+
+      adviser = User.find_by(login_name: 'Piyopiyo-adviser')
+      assert_nil adviser.times_id
+    end
+
+    class FakeCard
+      def search(*)
+        nil
+      end
+
+      def create(*)
+        {
+          id: 'fake_customer_0123456789'
+        }.stringify_keys
+      end
+    end
+
+    class FakeSubscription
+      def create(*)
+        {
+          id: 'fake_subscription_0123456789'
+        }.stringify_keys
+      end
+    end
+
+    class ValidTimesChannel
+      def save
+        true
+      end
+
+      def id
+        'fake_times_snowflake_0123456789'
+      end
+    end
+  end
+end
diff --git a/test/models/times_channel_creator_test.rb b/test/models/times_channel_creator_test.rb
new file mode 100644
index 00000000000..593f0797d61
--- /dev/null
+++ b/test/models/times_channel_creator_test.rb
@@ -0,0 +1,64 @@
+# frozen_string_literal: true
+
+require 'test_helper'
+
+class TimesChannelCreatorTest < ActiveSupport::TestCase
+  test '#call' do
+    logs = []
+    user = users(:hajime)
+    assert user.student?
+
+    Rails.logger.stub(:warn, ->(message) { logs << message }) do
+      Discord::TimesChannel.stub(:new, ->(_) { InvalidTimesChannel.new }) do
+        TimesChannelCreator.new.call(user)
+      end
+      assert_nil user.times_id
+      assert_equal "[Discord API] #{user.login_name}の分報チャンネルが作成できませんでした。", logs.pop
+
+      Discord::TimesChannel.stub(:new, ->(_) { ValidTimesChannel.new }) do
+        TimesChannelCreator.new.call(user)
+      end
+      assert_equal '1234567890123456789', user.times_id
+      assert_nil logs.last
+    end
+  end
+
+  test '#call with role' do
+    user = users(:adminonly)
+    assert user.admin?
+    assert_raise ArgumentError do
+      TimesChannelCreator.new.call(user)
+    end
+    assert_not user.student_or_trainee?
+
+    user = users(:mentormentaro)
+    assert user.mentor?
+    assert_raise ArgumentError do
+      TimesChannelCreator.new.call(user)
+    end
+    assert_not user.student_or_trainee?
+
+    user = users(:senpai)
+    assert user.adviser?
+    assert_raise ArgumentError do
+      TimesChannelCreator.new.call(user)
+    end
+    assert_not user.student_or_trainee?
+  end
+
+  class ValidTimesChannel
+    def save
+      true
+    end
+
+    def id
+      '1234567890123456789'
+    end
+  end
+
+  class InvalidTimesChannel
+    def save
+      false
+    end
+  end
+end
diff --git a/test/system/notification/signed_up_test.rb b/test/system/notification/signed_up_test.rb
index f30f177a3b4..e0534494690 100644
--- a/test/system/notification/signed_up_test.rb
+++ b/test/system/notification/signed_up_test.rb
@@ -6,10 +6,14 @@ class Notification::SignedUpTest < ApplicationSystemTestCase
   setup do
     @delivery_mode = AbstractNotifier.delivery_mode
     AbstractNotifier.delivery_mode = :normal
+
+    @bot_token = Discord::Server.authorize_token
+    Discord::Server.authorize_token = 'skip'
   end
 
   teardown do
     AbstractNotifier.delivery_mode = @delivery_mode
+    Discord::Server.authorize_token = @bot_token
   end
 
   test 'notify mentors when signed up as adviser' do
diff --git a/test/system/sign_up_test.rb b/test/system/sign_up_test.rb
index c131f05fba4..dcf428fec6e 100644
--- a/test/system/sign_up_test.rb
+++ b/test/system/sign_up_test.rb
@@ -3,6 +3,15 @@
 require 'application_system_test_case'
 
 class SignUpTest < ApplicationSystemTestCase
+  setup do
+    @bot_token = Discord::Server.authorize_token
+    Discord::Server.authorize_token = 'skip'
+  end
+
+  teardown do
+    Discord::Server.authorize_token = @bot_token
+  end
+
   test 'sign up' do
     visit '/users/new'
     within 'form[name=user]' do