diff --git a/api/Gemfile b/api/Gemfile
index b25e05b1..516ccfd9 100644
--- a/api/Gemfile
+++ b/api/Gemfile
@@ -21,6 +21,7 @@ gem 'rack-cors'
 gem 'rambulance'
 gem 'sentry-rails'
 gem 'sentry-sidekiq'
+gem 'sequel'
 gem 'sidekiq'
 gem 'sidekiq-scheduler'
 gem 'submission-excel2xml', github: 'ddbj/submission-excel2xml'
diff --git a/api/Gemfile.lock b/api/Gemfile.lock
index a312448b..322c887b 100644
--- a/api/Gemfile.lock
+++ b/api/Gemfile.lock
@@ -341,6 +341,8 @@ GEM
     sentry-sidekiq (5.17.3)
       sentry-ruby (~> 5.17.3)
       sidekiq (>= 3.0)
+    sequel (5.81.0)
+      bigdecimal
     sidekiq (7.2.4)
       concurrent-ruby (< 2)
       connection_pool (>= 2.3.0)
@@ -416,6 +418,7 @@ DEPENDENCIES
   rspec-rails
   sentry-rails
   sentry-sidekiq
+  sequel
   sidekiq
   sidekiq-scheduler
   skooma
diff --git a/api/app/models/database/dra.rb b/api/app/models/database/dra.rb
index 88d6b4f0..01819815 100644
--- a/api/app/models/database/dra.rb
+++ b/api/app/models/database/dra.rb
@@ -50,7 +50,43 @@ def validate(validation)
 
   class Submitter
     def submit(submission)
-      # do nothing
+      db = Sequel.connect(ENV.fetch('DRA_DATABASE_URL'))
+
+      user_id       = 42
+      submitter_id  = '42'
+      serial        = (db[:submission].where(submitter_id:).max(:serial) || 0) + 1
+      submission_id = "#{submitter_id}-#{serial.to_s.rjust(4, '0')}"
+
+      sub_id = db[:submission].insert(
+        usr_id:       user_id,
+        submitter_id: ,
+        serial:       ,
+        create_date:  Date.current
+      )
+
+      db[:status_history].insert(
+        sub_id: ,
+        status: 100 # SubmissionStatus.NEW
+      )
+
+      db[:operation_history].insert(
+        type:         3, # LogLevel.INFO
+        summary:      'Status update to new',
+        usr_id:       user_id,
+        serial:       ,
+        submitter_id:
+      )
+
+      ext_id = db[:ext_entity].insert(
+        acc_type: 'DRA',
+        ref_name: submission_id,
+        status:   0 # ExtStatus.INPUTTING
+      )
+
+      db[:ext_permit].insert(
+        ext_id:       ,
+        submitter_id:
+      )
     end
   end
 end
diff --git a/api/app/models/database/dra/db/migrations/001_init.rb b/api/app/models/database/dra/db/migrations/001_init.rb
new file mode 100644
index 00000000..22bd1229
--- /dev/null
+++ b/api/app/models/database/dra/db/migrations/001_init.rb
@@ -0,0 +1,53 @@
+Sequel.migration do
+  change do
+    create_table :submission do
+      primary_key :sub_id, type: :bigint
+
+      bigint  :usr_id,       null: false
+      text    :submitter_id, null: false
+      integer :serial,       null: false
+      integer :charge
+      date    :create_date
+      date    :submit_date
+      date    :hold_date
+      date    :dist_date
+      date    :finish_date
+      text    :note
+    end
+
+    create_table :status_history do
+      primary_key :id, type: :bigint
+
+      bigint    :sub_id
+      integer   :status
+      timestamp :date
+    end
+
+    create_table :operation_history do
+      primary_key :his_id, type: :bigint
+
+      integer   :type
+      text      :summary
+      text      :file_name
+      timestamp :date
+      bigint    :usr_id
+      integer   :serial
+      text      :submitter_id
+    end
+
+    create_table :ext_entity do
+      primary_key :ext_id, type: :bigint
+
+      text    :acc_type
+      text    :ref_name
+      integer :status
+    end
+
+    create_table :ext_permit do
+      primary_key :per_id, type: :bigint
+
+      bigint :ext_id
+      text   :submitter_id
+    end
+  end
+end
diff --git a/api/lib/tasks/dra.rake b/api/lib/tasks/dra.rake
new file mode 100644
index 00000000..5afa5a86
--- /dev/null
+++ b/api/lib/tasks/dra.rake
@@ -0,0 +1,14 @@
+namespace :dra do
+  namespace :db do
+    desc 'Run migrations'
+    task :migrate, [:version] do |t, args|
+      require 'sequel/core'
+
+      Sequel.extension :migration
+
+      Sequel.connect ENV.fetch('DRA_DATABASE_URL') do |db|
+        Sequel::Migrator.run db, 'app/models/database/dra/db/migrations', target: args[:version]&.to_i
+      end
+    end
+  end
+end