diff --git a/Gemfile b/Gemfile
index 586f285..2d7c1a2 100644
--- a/Gemfile
+++ b/Gemfile
@@ -43,6 +43,9 @@ gem 'pg_search'
 # Pagination library
 gem 'will_paginate', '~> 3.3'
 
+# Migrate and update data alongside your database structure.
+gem 'data_migrate'
+
 group :doc do
   gem 'apipie-rails'
   gem 'sdoc'
diff --git a/Gemfile.lock b/Gemfile.lock
index eb88c9c..cb924f1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -80,6 +80,9 @@ GEM
     byebug (11.1.3)
     concurrent-ruby (1.1.9)
     crass (1.0.6)
+    data_migrate (8.5.0)
+      activerecord (>= 5.0)
+      railties (>= 5.0)
     database_cleaner (2.0.1)
       database_cleaner-active_record (~> 2.0.0)
     database_cleaner-active_record (2.0.1)
@@ -131,12 +134,12 @@ GEM
     marcel (1.0.2)
     method_source (1.0.0)
     mini_mime (1.1.2)
+    mini_portile2 (2.6.1)
     minitest (5.14.4)
     msgpack (1.4.2)
     nio4r (2.5.8)
-    nokogiri (1.12.5-arm64-darwin)
-      racc (~> 1.4)
-    nokogiri (1.12.5-x86_64-linux)
+    nokogiri (1.12.5)
+      mini_portile2 (~> 2.6.1)
       racc (~> 1.4)
     oj (3.13.9)
     parallel (1.21.0)
@@ -276,8 +279,7 @@ GEM
     zeitwerk (2.5.1)
 
 PLATFORMS
-  arm64-darwin-21
-  x86_64-linux
+  ruby
 
 DEPENDENCIES
   api_matchers
@@ -288,6 +290,7 @@ DEPENDENCIES
   blueprinter
   bootsnap
   byebug
+  data_migrate
   database_cleaner
   doorkeeper
   dotenv-rails
diff --git a/db/data/20230102160350_migrate_weapon_limit_to_boolean.rb b/db/data/20230102160350_migrate_weapon_limit_to_boolean.rb
new file mode 100644
index 0000000..41b359f
--- /dev/null
+++ b/db/data/20230102160350_migrate_weapon_limit_to_boolean.rb
@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+class MigrateLimitToBoolean < ActiveRecord::Migration[6.1]
+  def up
+    Weapon.all.each do |weapon|
+      weapon.limit2 = weapon.limit > 0
+    end
+
+    Summon.all.each do |summon|
+      summon.limit2 = summon.limit > 0
+    end
+  end
+
+  def down
+    raise ActiveRecord::IrreversibleMigration
+  end
+end
diff --git a/db/data/20230102161028_migrate_limit_value_to_limit2.rb b/db/data/20230102161028_migrate_limit_value_to_limit2.rb
new file mode 100644
index 0000000..1ef4122
--- /dev/null
+++ b/db/data/20230102161028_migrate_limit_value_to_limit2.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+class MigrateLimitValueToLimit2 < ActiveRecord::Migration[6.1]
+  def up
+    Weapon.all.each do |weapon|
+      weapon.limit2 = !(weapon.limit == 0)
+      weapon.save
+    end
+
+    Summon.all.each do |summon|
+      summon.limit2 = !(summon.limit == 0)
+      summon.save
+    end
+  end
+
+  def down
+    # raise ActiveRecord::IrreversibleMigration
+  end
+end
diff --git a/db/data/20230102233527_migrate_ax_type_to_ax.rb b/db/data/20230102233527_migrate_ax_type_to_ax.rb
new file mode 100644
index 0000000..e559c43
--- /dev/null
+++ b/db/data/20230102233527_migrate_ax_type_to_ax.rb
@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+class MigrateAxTypeToAx < ActiveRecord::Migration[6.1]
+  def up
+    Weapon.all.each do |weapon|
+      if weapon.ax_type > 0
+        weapon.ax = true
+      elsif weapon.ax_type == 0
+        weapon.ax = false
+        weapon.ax_type = nil
+      end
+
+      weapon.save
+    end
+  end
+
+  def down
+    raise ActiveRecord::IrreversibleMigration
+  end
+end
diff --git a/db/data/20230102235227_set_flb_to_false_on_summons.rb b/db/data/20230102235227_set_flb_to_false_on_summons.rb
new file mode 100644
index 0000000..96f4434
--- /dev/null
+++ b/db/data/20230102235227_set_flb_to_false_on_summons.rb
@@ -0,0 +1,21 @@
+# frozen_string_literal: true
+
+class SetFlbToFalseOnSummons < ActiveRecord::Migration[6.1]
+  def up
+    Summon.all.each do |summon|
+      if summon.flb.nil?
+        summon.flb = false
+        summon.save
+      end
+
+      if summon.ulb.nil?
+        summon.ulb = false
+        summon.save
+      end
+    end
+  end
+
+  def down
+    raise ActiveRecord::IrreversibleMigration
+  end
+end
diff --git a/db/data_schema.rb b/db/data_schema.rb
new file mode 100644
index 0000000..aaf6ba0
--- /dev/null
+++ b/db/data_schema.rb
@@ -0,0 +1 @@
+DataMigrate::Data.define(version: 20230102235227)
diff --git a/db/migrate/20230102154816_change_limit_to_boolean.rb b/db/migrate/20230102154816_change_limit_to_boolean.rb
new file mode 100644
index 0000000..65c36f5
--- /dev/null
+++ b/db/migrate/20230102154816_change_limit_to_boolean.rb
@@ -0,0 +1,6 @@
+class ChangeLimitToBoolean < ActiveRecord::Migration[6.1]
+  def change
+    add_column :weapons, :limit2, :boolean, default: false, null: false
+    add_column :summons, :limit2, :boolean, default: false, null: false
+  end
+end
diff --git a/db/migrate/20230102161702_remove_limit_from_weapons.rb b/db/migrate/20230102161702_remove_limit_from_weapons.rb
new file mode 100644
index 0000000..f8e248c
--- /dev/null
+++ b/db/migrate/20230102161702_remove_limit_from_weapons.rb
@@ -0,0 +1,5 @@
+class RemoveLimitFromWeapons < ActiveRecord::Migration[6.1]
+  def change
+    remove_column :weapons, :limit, :integer
+  end
+end
diff --git a/db/migrate/20230102161738_rename_limit2_on_weapon.rb b/db/migrate/20230102161738_rename_limit2_on_weapon.rb
new file mode 100644
index 0000000..5981c35
--- /dev/null
+++ b/db/migrate/20230102161738_rename_limit2_on_weapon.rb
@@ -0,0 +1,5 @@
+class RenameLimit2OnWeapon < ActiveRecord::Migration[6.1]
+  def change
+    rename_column :weapons, :limit2, :limit
+  end
+end
diff --git a/db/migrate/20230102161820_remove_limit_from_summons.rb b/db/migrate/20230102161820_remove_limit_from_summons.rb
new file mode 100644
index 0000000..324dc7c
--- /dev/null
+++ b/db/migrate/20230102161820_remove_limit_from_summons.rb
@@ -0,0 +1,5 @@
+class RemoveLimitFromSummons < ActiveRecord::Migration[6.1]
+  def change
+    remove_column :summons, :limit, :integer
+  end
+end
diff --git a/db/migrate/20230102161941_rename_limit2_on_summons.rb b/db/migrate/20230102161941_rename_limit2_on_summons.rb
new file mode 100644
index 0000000..f5478dc
--- /dev/null
+++ b/db/migrate/20230102161941_rename_limit2_on_summons.rb
@@ -0,0 +1,5 @@
+class RenameLimit2OnSummons < ActiveRecord::Migration[6.1]
+  def change
+    rename_column :summons, :limit2, :limit
+  end
+end
diff --git a/db/migrate/20230102233405_rename_ax_to_ax_type_on_weapons.rb b/db/migrate/20230102233405_rename_ax_to_ax_type_on_weapons.rb
new file mode 100644
index 0000000..d7ce499
--- /dev/null
+++ b/db/migrate/20230102233405_rename_ax_to_ax_type_on_weapons.rb
@@ -0,0 +1,5 @@
+class RenameAxToAxTypeOnWeapons < ActiveRecord::Migration[6.1]
+  def change
+    rename_column :weapons, :ax, :ax_type
+  end
+end
diff --git a/db/migrate/20230102233457_add_boolean_ax_to_weapons.rb b/db/migrate/20230102233457_add_boolean_ax_to_weapons.rb
new file mode 100644
index 0000000..67b86c0
--- /dev/null
+++ b/db/migrate/20230102233457_add_boolean_ax_to_weapons.rb
@@ -0,0 +1,5 @@
+class AddBooleanAxToWeapons < ActiveRecord::Migration[6.1]
+  def change
+    add_column :weapons, :ax, :boolean
+  end
+end
diff --git a/db/migrate/20230102233727_change_ax_ax_type_properties.rb b/db/migrate/20230102233727_change_ax_ax_type_properties.rb
new file mode 100644
index 0000000..78c7a78
--- /dev/null
+++ b/db/migrate/20230102233727_change_ax_ax_type_properties.rb
@@ -0,0 +1,6 @@
+class ChangeAxAxTypeProperties < ActiveRecord::Migration[6.1]
+  def change
+    change_column :weapons, :ax, :boolean, null: false, default: false
+    change_column :weapons, :ax_type, :integer, null: true, default: nil
+  end
+end
diff --git a/db/migrate/20230102234217_add_xlb_to_summons.rb b/db/migrate/20230102234217_add_xlb_to_summons.rb
new file mode 100644
index 0000000..3878206
--- /dev/null
+++ b/db/migrate/20230102234217_add_xlb_to_summons.rb
@@ -0,0 +1,5 @@
+class AddXlbToSummons < ActiveRecord::Migration[6.1]
+  def change
+    add_column :summons, :xlb, :boolean, default: false, null: false
+  end
+end
diff --git a/db/migrate/20230102234252_set_defaults_on_summons.rb b/db/migrate/20230102234252_set_defaults_on_summons.rb
new file mode 100644
index 0000000..f9307e4
--- /dev/null
+++ b/db/migrate/20230102234252_set_defaults_on_summons.rb
@@ -0,0 +1,7 @@
+class SetDefaultsOnSummons < ActiveRecord::Migration[6.1]
+  def change
+    change_column :summons, :flb, :boolean, null: false, default: false
+    change_column :summons, :ulb, :boolean, null: false, default: false
+    change_column :summons, :max_level, :integer, null: false, default: 100
+  end
+end
diff --git a/db/migrate/20230102234524_add_transcendence_step_to_grid_characters.rb b/db/migrate/20230102234524_add_transcendence_step_to_grid_characters.rb
new file mode 100644
index 0000000..f759118
--- /dev/null
+++ b/db/migrate/20230102234524_add_transcendence_step_to_grid_characters.rb
@@ -0,0 +1,5 @@
+class AddTranscendenceStepToGridCharacters < ActiveRecord::Migration[6.1]
+  def change
+    add_column :grid_characters, :transcendence_step, :integer, default: 0, null: false
+  end
+end
diff --git a/db/migrate/20230102234632_add_transcendence_step_to_grid_summons.rb b/db/migrate/20230102234632_add_transcendence_step_to_grid_summons.rb
new file mode 100644
index 0000000..8c3d3c7
--- /dev/null
+++ b/db/migrate/20230102234632_add_transcendence_step_to_grid_summons.rb
@@ -0,0 +1,5 @@
+class AddTranscendenceStepToGridSummons < ActiveRecord::Migration[6.1]
+  def change
+    add_column :grid_summons, :transcendence_step, :integer, default: 0, null: false
+  end
+end
diff --git a/db/migrate/20230102235042_add_rings_earrings_to_grid_characters.rb b/db/migrate/20230102235042_add_rings_earrings_to_grid_characters.rb
new file mode 100644
index 0000000..2580f1d
--- /dev/null
+++ b/db/migrate/20230102235042_add_rings_earrings_to_grid_characters.rb
@@ -0,0 +1,18 @@
+class AddRingsEarringsToGridCharacters < ActiveRecord::Migration[6.1]
+  def change
+    add_column :grid_characters, :ring_modifier1, :integer
+    add_column :grid_characters, :ring_strength1, :float
+
+    add_column :grid_characters, :ring_modifier2, :integer
+    add_column :grid_characters, :ring_strength2, :float
+
+    add_column :grid_characters, :ring_modifier3, :integer
+    add_column :grid_characters, :ring_strength3, :float
+
+    add_column :grid_characters, :ring_modifier4, :integer
+    add_column :grid_characters, :ring_strength4, :float
+
+    add_column :grid_characters, :earring_modifier, :integer
+    add_column :grid_characters, :earring_strength, :float
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 00e1a42..30210b5 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_26_054501) do
+ActiveRecord::Schema.define(version: 2023_01_02_235042) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "btree_gin"
@@ -48,6 +48,9 @@ ActiveRecord::Schema.define(version: 2022_12_26_054501) do
     t.index ["name_en"], name: "index_characters_on_name_en", opclass: :gin_trgm_ops, using: :gin
   end
 
+  create_table "data_migrations", primary_key: "version", id: :string, force: :cascade do |t|
+  end
+
   create_table "favorites", id: :uuid, default: -> { "gen_random_uuid()" }, force: :cascade do |t|
     t.uuid "user_id"
     t.uuid "party_id"
@@ -67,6 +70,17 @@ ActiveRecord::Schema.define(version: 2022_12_26_054501) do
     t.boolean "perpetuity", default: false, null: false
     t.integer "awakening_type", default: 0, null: false
     t.integer "awakening_level", default: 1, null: false
+    t.integer "transcendence_step", default: 0, null: false
+    t.integer "ring_modifier1"
+    t.float "ring_strength1"
+    t.integer "ring_modifier2"
+    t.float "ring_strength2"
+    t.integer "ring_modifier3"
+    t.float "ring_strength3"
+    t.integer "ring_modifier4"
+    t.float "ring_strength4"
+    t.integer "earring_modifier"
+    t.float "earring_strength"
     t.index ["character_id"], name: "index_grid_characters_on_character_id"
     t.index ["party_id"], name: "index_grid_characters_on_party_id"
   end
@@ -80,6 +94,7 @@ ActiveRecord::Schema.define(version: 2022_12_26_054501) do
     t.integer "position"
     t.datetime "created_at", precision: 6, null: false
     t.datetime "updated_at", precision: 6, null: false
+    t.integer "transcendence_step", default: 0, null: false
     t.index ["party_id"], name: "index_grid_summons_on_party_id"
     t.index ["summon_id"], name: "index_grid_summons_on_summon_id"
   end
@@ -211,9 +226,9 @@ ActiveRecord::Schema.define(version: 2022_12_26_054501) do
     t.integer "rarity"
     t.integer "element"
     t.string "series"
-    t.boolean "flb"
-    t.boolean "ulb"
-    t.integer "max_level"
+    t.boolean "flb", default: false, null: false
+    t.boolean "ulb", default: false, null: false
+    t.integer "max_level", default: 100, null: false
     t.integer "min_hp"
     t.integer "max_hp"
     t.integer "max_hp_flb"
@@ -223,7 +238,8 @@ ActiveRecord::Schema.define(version: 2022_12_26_054501) do
     t.integer "max_atk_flb"
     t.integer "max_atk_ulb"
     t.boolean "subaura", default: false, null: false
-    t.integer "limit"
+    t.boolean "limit", default: false, null: false
+    t.boolean "xlb", default: false, null: false
     t.index ["name_en"], name: "index_summons_on_name_en", opclass: :gin_trgm_ops, using: :gin
   end
 
@@ -273,9 +289,10 @@ ActiveRecord::Schema.define(version: 2022_12_26_054501) do
     t.integer "max_atk_flb"
     t.integer "max_atk_ulb"
     t.boolean "extra", default: false, null: false
-    t.integer "limit"
-    t.integer "ax", default: 0, null: false
+    t.integer "ax_type"
     t.boolean "awakening", default: true, null: false
+    t.boolean "limit", default: false, null: false
+    t.boolean "ax", default: false, null: false
     t.index ["name_en"], name: "index_weapons_on_name_en", opclass: :gin_trgm_ops, using: :gin
   end