diff --git a/PKHeX.Core/Editing/Saves/Slots/Extensions.cs b/PKHeX.Core/Editing/Saves/Slots/Extensions.cs
index e33e609c2..53c646bda 100644
--- a/PKHeX.Core/Editing/Saves/Slots/Extensions.cs
+++ b/PKHeX.Core/Editing/Saves/Slots/Extensions.cs
@@ -103,7 +103,7 @@ private static List<SlotInfoMisc> GetExtraSlots6XY(SAV6XY sav)
         [
             new(sav.GTS.Upload, 0) {Type = StorageSlotType.GTS},
             new(sav.Fused[0], 0) {Type = StorageSlotType.FusedKyurem},
-            new(sav.SUBE.GiveSlot, 0) {Type = StorageSlotType.Misc}, // Old Man
+            new(sav.SUBE.GiveSlot, 0, Mutable: true) {Type = StorageSlotType.Misc}, // Old Man
 
             new(sav.BattleBox[0], 0) {Type = StorageSlotType.BattleBox},
             new(sav.BattleBox[1], 1) {Type = StorageSlotType.BattleBox},
@@ -265,7 +265,7 @@ private static List<SlotInfoMisc> GetExtraSlots9a(SAV9ZA sav)
             var ofs = (i * size) + 8;
             var entry = giveAway.Raw.Slice(ofs, PokeCrypto.SIZE_9PARTY);
             if (EntityDetection.IsPresent(entry.Span))
-                list.Add(new(entry, i, true) { Type = StorageSlotType.Misc });
+                list.Add(new(entry, i, true, Mutable: true) { Type = StorageSlotType.Misc });
             else
                 break;
         }
diff --git a/PKHeX.Core/Legality/Verifiers/Ability/AbilityVerifier.cs b/PKHeX.Core/Legality/Verifiers/Ability/AbilityVerifier.cs
index 8b55cfdc9..d5cbd31e3 100644
--- a/PKHeX.Core/Legality/Verifiers/Ability/AbilityVerifier.cs
+++ b/PKHeX.Core/Legality/Verifiers/Ability/AbilityVerifier.cs
@@ -465,7 +465,11 @@ private CheckResult VerifyBirthAbility(LegalityAnalysis data, PA9 pa9)
     {
         var enc = data.EncounterMatch;
         var pi = PersonalTable.ZA[enc.Species, enc.Form];
-        var index = pa9.AbilityNumber >> 1;
+        var bitNum = pa9.AbilityNumber;
+        if (!IsValidAbilityBits(bitNum))
+            return INVALID;
+
+        var index = bitNum >> 1;
         var expect = pi.GetAbilityAtIndex(index);
         if (pa9.Ability != expect)
             return GetInvalid(AbilityMismatch);
diff --git a/PKHeX.Core/Saves/Access/SaveBlockAccessor9ZA.cs b/PKHeX.Core/Saves/Access/SaveBlockAccessor9ZA.cs
index 3beaf50a4..f44556396 100644
--- a/PKHeX.Core/Saves/Access/SaveBlockAccessor9ZA.cs
+++ b/PKHeX.Core/Saves/Access/SaveBlockAccessor9ZA.cs
@@ -34,6 +34,8 @@ public sealed class SaveBlockAccessor9ZA(SAV9ZA sav) : SCBlockAccessor
     public EventWorkValueStorage WorkSpawn { get; } = new(sav, Block(sav, KEventWorkSpawn));
     public EventWorkFlagStorage Flags { get; } = new(sav, Block(sav, KEventFlagsOther));
 
+    public MableStatus9a Mable { get; } = new(sav, Block(sav, KStatusMable));
+
     private const uint KBox = 0x0d66012c; // Box Data
     private const uint KParty = 0x3AA1A9AD; // Party Data
     private const uint KItem = 0x21C9BD44; // Items
@@ -60,7 +62,7 @@ public sealed class SaveBlockAccessor9ZA(SAV9ZA sav) : SCBlockAccessor
     private const uint KEventWorkMable = 0x03913534; // momiji_work (u64,u64)[1024] - Mable Tasks Status
     private const uint KEventCountMable = 0x8D80EC0F; // momiji_count (u64,u64)[64] - Mable Tasks Counts
 
-    private const uint KEventCountTitle = 0x2C2C6964; // TITLE_COUNT_XXXX (u64,u64)[64], such as total Money earned/spent (TITLE=TOTAL/placeholder title?)
+    private const uint KEventCountTitle = 0x2C2C6964; // title_count (u64,u64)[64] - Player earned display titles
     private const uint KEventWorkSpawn = 0x53FD0223; // Overworld Spawner 0x46500 small values (u64,u64)[18000]
                                                  // 7C896A83 0x2000 unused
                                                  // B25E7EE5 0x400 unused
@@ -132,4 +134,6 @@ public sealed class SaveBlockAccessor9ZA(SAV9ZA sav) : SCBlockAccessor
     private const uint KNightRoyalePostBattleRewards = 0x356087AD; // object
     private const uint KNightRoyaleTrainerStatus = 0x718B8CB1; // object
     private const uint KNightRoyaleBonusCards = 0x2A07F494; // object
+
+    private const uint KStatusMable = 0x85DBDCE9; // Mable Overall Status
 }
diff --git a/PKHeX.Core/Saves/Substructures/Gen9/ZA/MableStatus9a.cs b/PKHeX.Core/Saves/Substructures/Gen9/ZA/MableStatus9a.cs
new file mode 100644
index 000000000..3ceb25d70
--- /dev/null
+++ b/PKHeX.Core/Saves/Substructures/Gen9/ZA/MableStatus9a.cs
@@ -0,0 +1,20 @@
+using PKHeX.Core;
+using static System.Buffers.Binary.BinaryPrimitives;
+
+public sealed class MableStatus9a(SAV9ZA sav, SCBlock block) : SaveBlock<SAV9ZA>(sav, block.Raw)
+{
+    /// <summary>
+    /// Current level achieved for Mable's Research.
+    /// </summary>
+    public uint LevelCurrent { get => ReadUInt32LittleEndian(Data); set => WriteUInt32LittleEndian(Data, value); }
+
+    /// <summary>
+    /// Last viewed/claimed level for Mable's Research.
+    /// </summary>
+    public uint LevelViewed  { get => ReadUInt32LittleEndian(Data[0x04..]); set => WriteUInt32LittleEndian(Data[0x04..], value); }
+
+    /// <summary>
+    /// Research Points accumulated for Mable's Research.
+    /// </summary>
+    public uint Points       { get => ReadUInt32LittleEndian(Data[0x08..]); set => WriteUInt32LittleEndian(Data[0x08..], value); }
+}