diff --git a/SVSim.Bootstrap/Importers/StoryDeckImporter.cs b/SVSim.Bootstrap/Importers/StoryDeckImporter.cs
new file mode 100644
index 0000000..42b0025
--- /dev/null
+++ b/SVSim.Bootstrap/Importers/StoryDeckImporter.cs
@@ -0,0 +1,52 @@
+using Microsoft.EntityFrameworkCore;
+using SVSim.Bootstrap.Models.Seed;
+using SVSim.Database;
+using SVSim.Database.Enums;
+using SVSim.Database.Models;
+
+namespace SVSim.Bootstrap.Importers;
+
+/// <summary>
+/// Idempotent upsert of story-deck presentation rows from <c>seeds/story-decks.json</c>.
+/// Card lists are NOT imported here — they belong to BuildDeckProductEntry (deck_no == product_id),
+/// so this importer should run AFTER BuildDeckImporter.ImportPackageAsync. Rows missing from the
+/// seed are left intact.
+/// </summary>
+public class StoryDeckImporter
+{
+    public async Task<int> ImportAsync(SVSimDbContext context, string seedDir)
+    {
+        var seed = SeedLoader.LoadList<StoryDeckSeed>(Path.Combine(seedDir, "story-decks.json"));
+        if (seed.Count == 0)
+        {
+            Console.WriteLine("[StoryDeckImporter] No seed rows; skipping.");
+            return 0;
+        }
+
+        var existing = await context.StoryDecks.ToDictionaryAsync(e => e.Id);
+        int created = 0, updated = 0;
+
+        foreach (var s in seed)
+        {
+            if (s.DeckNo == 0) continue;
+            var entry = existing.TryGetValue(s.DeckNo, out var ex) ? ex : new StoryDeckEntry { DeckNo = s.DeckNo };
+            entry.Kind = string.Equals(s.Kind, "trial", StringComparison.OrdinalIgnoreCase)
+                ? StoryDeckKind.Trial : StoryDeckKind.Build;
+            entry.ClassId = s.ClassId;
+            entry.DeckName = s.DeckName;
+            entry.SleeveId = s.SleeveId;
+            entry.LeaderSkinId = s.LeaderSkinId;
+            entry.IsRecommend = s.IsRecommend;
+            entry.OrderNum = s.OrderNum;
+            entry.EntryNo = s.EntryNo;
+            entry.DeckFormat = s.DeckFormat;
+
+            if (ex is null) { context.StoryDecks.Add(entry); existing[s.DeckNo] = entry; created++; }
+            else updated++;
+        }
+
+        await context.SaveChangesAsync();
+        Console.WriteLine($"[StoryDeckImporter] +{created}/~{updated}");
+        return created + updated;
+    }
+}
diff --git a/SVSim.Bootstrap/Models/Seed/StoryDeckSeed.cs b/SVSim.Bootstrap/Models/Seed/StoryDeckSeed.cs
new file mode 100644
index 0000000..9afe87a
--- /dev/null
+++ b/SVSim.Bootstrap/Models/Seed/StoryDeckSeed.cs
@@ -0,0 +1,17 @@
+using System.Text.Json.Serialization;
+
+namespace SVSim.Bootstrap.Models.Seed;
+
+public sealed class StoryDeckSeed
+{
+    [JsonPropertyName("deck_no")] public int DeckNo { get; set; }
+    [JsonPropertyName("kind")] public string Kind { get; set; } = "build";
+    [JsonPropertyName("class_id")] public int ClassId { get; set; }
+    [JsonPropertyName("deck_name")] public string DeckName { get; set; } = "";
+    [JsonPropertyName("sleeve_id")] public int SleeveId { get; set; }
+    [JsonPropertyName("leader_skin_id")] public int LeaderSkinId { get; set; }
+    [JsonPropertyName("is_recommend")] public int IsRecommend { get; set; }
+    [JsonPropertyName("order_num")] public int OrderNum { get; set; }
+    [JsonPropertyName("entry_no")] public int EntryNo { get; set; }
+    [JsonPropertyName("deck_format")] public int? DeckFormat { get; set; }
+}
diff --git a/SVSim.Bootstrap/Program.cs b/SVSim.Bootstrap/Program.cs
index 92e501a..b10ecb2 100644
--- a/SVSim.Bootstrap/Program.cs
+++ b/SVSim.Bootstrap/Program.cs
@@ -124,6 +124,7 @@ public static class Program
             await buildDeck.ImportSeriesAsync(context, opts.ReferenceDataDir);
             await buildDeck.ImportCatalogAsync(context, opts.SeedDir);
             await buildDeck.ImportPackageAsync(context, opts.ReferenceDataDir);
+            await new StoryDeckImporter().ImportAsync(context, opts.SeedDir);
         }
         else
         {
diff --git a/SVSim.UnitTests/Importers/StoryDeckImporterTests.cs b/SVSim.UnitTests/Importers/StoryDeckImporterTests.cs
new file mode 100644
index 0000000..d996686
--- /dev/null
+++ b/SVSim.UnitTests/Importers/StoryDeckImporterTests.cs
@@ -0,0 +1,49 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.DependencyInjection;
+using SVSim.Bootstrap.Importers;
+using SVSim.Database;
+using SVSim.Database.Enums;
+using SVSim.UnitTests.Infrastructure;
+
+namespace SVSim.UnitTests.Importers;
+
+public class StoryDeckImporterTests
+{
+    private static string SeedDir => Path.Combine(AppContext.BaseDirectory, "Data", "seeds");
+
+    [Test]
+    public async Task Imports_story_decks_from_seed_file()
+    {
+        using var factory = new SVSimTestFactory();
+        using var scope = factory.Services.CreateScope();
+        var db = scope.ServiceProvider.GetRequiredService<SVSimDbContext>();
+
+        await new StoryDeckImporter().ImportAsync(db, SeedDir);
+
+        var decks = await db.StoryDecks.OrderBy(d => d.Id).ToListAsync();
+        Assert.That(decks.Count, Is.EqualTo(112), "53 build + 59 trial");
+        Assert.That(decks.Count(d => d.Kind == StoryDeckKind.Build), Is.EqualTo(53));
+        Assert.That(decks.Count(d => d.Kind == StoryDeckKind.Trial), Is.EqualTo(59));
+        var pureDevotion = decks.Single(d => d.DeckNo == 701);
+        Assert.That(pureDevotion.Kind, Is.EqualTo(StoryDeckKind.Build));
+        Assert.That(pureDevotion.ClassId, Is.EqualTo(1));
+        Assert.That(pureDevotion.DeckName, Is.EqualTo("Pure Devotion"));
+        Assert.That(pureDevotion.DeckFormat, Is.Null);
+        Assert.That(decks.Where(d => d.Kind == StoryDeckKind.Trial).All(d => d.DeckFormat != null), Is.True);
+    }
+
+    [Test]
+    public async Task Is_idempotent_on_rerun()
+    {
+        using var factory = new SVSimTestFactory();
+        using var scope = factory.Services.CreateScope();
+        var db = scope.ServiceProvider.GetRequiredService<SVSimDbContext>();
+
+        await new StoryDeckImporter().ImportAsync(db, SeedDir);
+        int before = await db.StoryDecks.CountAsync();
+        await new StoryDeckImporter().ImportAsync(db, SeedDir);
+        int after = await db.StoryDecks.CountAsync();
+
+        Assert.That(after, Is.EqualTo(before));
+    }
+}