diff --git a/app/models/character.rb b/app/models/character.rb
index 2d051a4..3040508 100644
--- a/app/models/character.rb
+++ b/app/models/character.rb
@@ -99,20 +99,20 @@ class Character < ApplicationRecord
 
   # Mapping from legacy integer values to slugs
   LEGACY_SERIES_TO_SLUG = {
-    1 => 'standard',
-    2 => 'grand',
-    3 => 'zodiac',
-    4 => 'promo',
-    5 => 'collab',
-    6 => 'eternal',
-    7 => 'evoker',
-    8 => 'saint',
-    9 => 'fantasy',
-    10 => 'summer',
-    11 => 'yukata',
-    12 => 'valentine',
-    13 => 'halloween',
-    14 => 'formal',
+    1 => 'grand',
+    2 => 'zodiac',
+    3 => 'promo',
+    4 => 'collab',
+    5 => 'eternal',
+    6 => 'evoker',
+    7 => 'saint',
+    8 => 'fantasy',
+    9 => 'summer',
+    10 => 'yukata',
+    11 => 'valentine',
+    12 => 'halloween',
+    13 => 'formal',
+    14 => 'holiday',
     15 => 'event'
   }.freeze
 
diff --git a/app/models/character_series.rb b/app/models/character_series.rb
index f3bc365..e406a71 100644
--- a/app/models/character_series.rb
+++ b/app/models/character_series.rb
@@ -12,7 +12,6 @@ class CharacterSeries < ApplicationRecord
   scope :ordered, -> { order(:order) }
 
   # Slug constants for commonly referenced series
-  STANDARD = 'standard'
   GRAND = 'grand'
   ZODIAC = 'zodiac'
   ETERNAL = 'eternal'
diff --git a/lib/granblue/parsers/character_parser.rb b/lib/granblue/parsers/character_parser.rb
index 20326c5..e486a67 100644
--- a/lib/granblue/parsers/character_parser.rb
+++ b/lib/granblue/parsers/character_parser.rb
@@ -248,58 +248,55 @@ module Granblue
 
         # Additional series indicators from |obtain= field
         obtain = hash['obtain'].to_s.downcase
-        series << 2 if obtain.include?('grand') && !series.include?(2)  # Grand
-        series << 3 if obtain.include?('zodiac') && !series.include?(3) # Zodiac
+        series << 1 if obtain.include?('grand') && !series.include?(1)  # Grand
+        series << 2 if obtain.include?('zodiac') && !series.include?(2) # Zodiac
 
         # Seasonal series based on page name or obtain field
         page_name = @character.wiki_en.to_s.downcase
         if page_name.include?('summer') || page_name.include?('(swimsuit)')
-          series << 10 unless series.include?(10) # Summer
+          series << 9 unless series.include?(9) # Summer
         end
         if page_name.include?('yukata')
-          series << 11 unless series.include?(11) # Yukata
+          series << 10 unless series.include?(10) # Yukata
         end
         if page_name.include?('valentine')
-          series << 12 unless series.include?(12) # Valentine
+          series << 11 unless series.include?(11) # Valentine
         end
         if page_name.include?('halloween')
-          series << 13 unless series.include?(13) # Halloween
+          series << 12 unless series.include?(12) # Halloween
         end
         if page_name.include?('(formal)') || page_name.include?('formal ')
-          series << 14 unless series.include?(14) # Formal
+          series << 13 unless series.include?(13) # Formal
         end
         if page_name.include?('holiday') || page_name.include?('(holiday)')
-          series << 1 unless series.include?(1)   # Standard for now, Holiday chars usually just standard series
+          series << 14 unless series.include?(14) # Holiday
         end
 
-        # Default to Standard if no series found and character is gacha-available
-        series << 1 if series.empty? && gacha_available_from_hash(hash)
-
         series.uniq.sort
       end
 
       # Extracts season (gacha availability window) from wiki hash
-      # Returns a single season ID based on seasonal indicators
+      # Returns a single season ID based on seasonal indicators, or nil for non-seasonal
       def season_from_hash(hash)
         page_name = @character.wiki_en.to_s.downcase
         obtain = hash['obtain'].to_s.downcase
 
         # Check page name for seasonal indicators
-        return 2 if page_name.include?('valentine')
-        return 3 if page_name.include?('(formal)') || page_name.include?('formal ')
-        return 4 if page_name.include?('summer') || page_name.include?('yukata') || page_name.include?('(swimsuit)')
-        return 5 if page_name.include?('halloween')
-        return 6 if page_name.include?('holiday') || page_name.include?('(holiday)')
+        return 1 if page_name.include?('valentine')
+        return 2 if page_name.include?('(formal)') || page_name.include?('formal ')
+        return 3 if page_name.include?('summer') || page_name.include?('yukata') || page_name.include?('(swimsuit)')
+        return 4 if page_name.include?('halloween')
+        return 5 if page_name.include?('holiday') || page_name.include?('(holiday)')
 
         # Check obtain field for seasonal banners
-        return 2 if obtain.include?('valentine')
-        return 3 if obtain.include?('formal')
-        return 4 if obtain.include?('summer')
-        return 5 if obtain.include?('halloween')
-        return 6 if obtain.include?('holiday')
+        return 1 if obtain.include?('valentine')
+        return 2 if obtain.include?('formal')
+        return 3 if obtain.include?('summer')
+        return 4 if obtain.include?('halloween')
+        return 5 if obtain.include?('holiday')
 
-        # Default to Standard for gacha-available characters
-        1 if gacha_available_from_hash(hash)
+        # Non-seasonal characters have nil season
+        nil
       end
 
       # Determines if character can be pulled from gacha based on obtain field and series
diff --git a/lib/granblue/parsers/wiki.rb b/lib/granblue/parsers/wiki.rb
index 2a3393f..eb753a4 100644
--- a/lib/granblue/parsers/wiki.rb
+++ b/lib/granblue/parsers/wiki.rb
@@ -79,22 +79,21 @@ module Granblue
       # Maps wiki |series= values to CHARACTER_SERIES enum values
       # Wiki uses lowercase, single values like "grand", "zodiac", etc.
       self.character_series = {
-        'normal' => 1,      # Standard
-        'grand' => 2,       # Grand
-        'zodiac' => 3,      # Zodiac
-        'promo' => 4,       # Promo
-        'collab' => 5,      # Collab
-        'eternal' => 6,     # Eternal
-        'evoker' => 7,      # Evoker
-        'archangel' => 8,   # Saint (Archangels)
-        'fantasy' => 9,     # Fantasy
-        'summer' => 10,     # Summer
-        'yukata' => 11,     # Yukata
-        'valentine' => 12,  # Valentine
-        'halloween' => 13,  # Halloween
-        'formal' => 14,     # Formal
-        'holiday' => 15,    # Holiday
-        'event' => 16       # Event
+        'grand' => 1,       # Grand
+        'zodiac' => 2,      # Zodiac
+        'promo' => 3,       # Promo
+        'collab' => 4,      # Collab
+        'eternal' => 5,     # Eternal
+        'evoker' => 6,      # Evoker
+        'archangel' => 7,   # Saint (Archangels)
+        'fantasy' => 8,     # Fantasy
+        'summer' => 9,      # Summer
+        'yukata' => 10,     # Yukata
+        'valentine' => 11,  # Valentine
+        'halloween' => 12,  # Halloween
+        'formal' => 13,     # Formal
+        'holiday' => 14,    # Holiday
+        'event' => 15       # Event
       }.freeze
 
       # Maps wiki seasonal indicators to CHARACTER_SEASONS enum values