diff --git a/PKHeX.Core/Legality/Encounters/Data/Live/EncounterServerDate.cs b/PKHeX.Core/Legality/Encounters/Data/Live/EncounterServerDate.cs
index 31111c32e..3f7586877 100644
--- a/PKHeX.Core/Legality/Encounters/Data/Live/EncounterServerDate.cs
+++ b/PKHeX.Core/Legality/Encounters/Data/Live/EncounterServerDate.cs
@@ -199,6 +199,7 @@ public static bool IsValidDateWC9(WC9 card, DateOnly obtained) => (WC9Gifts.TryG
         {1534, (new(2024, 03, 12), new(2025, 03, 01))}, // YOASOBI Pawmot
         {1535, (new(2024, 03, 14), new(2024, 10, 01))}, // Liko's Sprigatito Gift
         {0509, (new(2024, 04, 04), new(2024, 04, 09))}, // Marco's Iron Hands Gift
+        {1008, (new(2024, 05, 04), new(2024, 05, 08))}, // 신여명's Flutter Mane
 
         {9021, HOME3_ML}, // Hidden Ability Sprigatito
         {9022, HOME3_ML}, // Hidden Ability Fuecoco
diff --git a/PKHeX.Core/Resources/legality/mgdb/wc9.pkl b/PKHeX.Core/Resources/legality/mgdb/wc9.pkl
index 7d92333e4..4279814ea 100644
Binary files a/PKHeX.Core/Resources/legality/mgdb/wc9.pkl and b/PKHeX.Core/Resources/legality/mgdb/wc9.pkl differ