diff --git a/db/migrate/20230107121520_change_mastery_columns_to_jsonb.rb b/db/migrate/20230107121520_change_mastery_columns_to_jsonb.rb
new file mode 100644
index 0000000..b8319cc
--- /dev/null
+++ b/db/migrate/20230107121520_change_mastery_columns_to_jsonb.rb
@@ -0,0 +1,22 @@
+class ChangeMasteryColumnsToJsonb < ActiveRecord::Migration[7.0]
+  def change
+    # Remove old columns
+    remove_column :grid_characters, :ring_modifier1, :integer
+    remove_column :grid_characters, :ring_modifier2, :integer
+    remove_column :grid_characters, :ring_modifier3, :integer
+    remove_column :grid_characters, :ring_modifier4, :integer
+    remove_column :grid_characters, :ring_strength1, :integer
+    remove_column :grid_characters, :ring_strength2, :integer
+    remove_column :grid_characters, :ring_strength3, :integer
+    remove_column :grid_characters, :ring_strength4, :integer
+    remove_column :grid_characters, :earring_modifier, :integer
+    remove_column :grid_characters, :earring_strength, :integer
+
+    # Add new columns
+    add_column :grid_characters, :ring1, :jsonb, default: { modifier: nil, strength: nil }
+    add_column :grid_characters, :ring2, :jsonb, default: { modifier: nil, strength: nil }
+    add_column :grid_characters, :ring3, :jsonb, default: { modifier: nil, strength: nil }
+    add_column :grid_characters, :ring4, :jsonb, default: { modifier: nil, strength: nil }
+    add_column :grid_characters, :earring, :jsonb, default: { modifier: nil, strength: nil }
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 0b5c6cb..e6a1429 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[7.0].define(version: 2023_01_03_180458) do
+ActiveRecord::Schema[7.0].define(version: 2023_01_07_121520) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "btree_gin"
   enable_extension "pg_trgm"
@@ -67,19 +67,14 @@ ActiveRecord::Schema[7.0].define(version: 2023_01_03_180458) do
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
     t.boolean "perpetuity", default: false, null: false
-    t.integer "awakening_type", default: 0, null: false
+    t.integer "awakening_type", default: 1, 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.jsonb "ring1", default: {"modifier"=>nil, "strength"=>nil}
+    t.jsonb "ring2", default: {"modifier"=>nil, "strength"=>nil}
+    t.jsonb "ring3", default: {"modifier"=>nil, "strength"=>nil}
+    t.jsonb "ring4", default: {"modifier"=>nil, "strength"=>nil}
+    t.jsonb "earring", default: {"modifier"=>nil, "strength"=>nil}
     t.index ["character_id"], name: "index_grid_characters_on_character_id"
     t.index ["party_id"], name: "index_grid_characters_on_party_id"
   end