diff --git a/src/AcDream.App/Rendering/Wb/EnvCellRenderer.cs b/src/AcDream.App/Rendering/Wb/EnvCellRenderer.cs
index ad3e4e1..3bf2071 100644
--- a/src/AcDream.App/Rendering/Wb/EnvCellRenderer.cs
+++ b/src/AcDream.App/Rendering/Wb/EnvCellRenderer.cs
@@ -815,21 +815,32 @@ public sealed unsafe class EnvCellRenderer : IDisposable
             _gl.BindVertexArray(0);
             _currentVao = 0;
 
-            // Phase A8 fix (2026-05-28 visual-gate-#3 follow-up): explicitly
-            // restore cull-back at exit. The Landblock→None override above
-            // can leave cull DISABLED if the last batch's CullMode was
-            // Landblock — which would leak into the subsequent dispatcher
-            // draws (IndoorPass building shells, then LiveDynamic chars +
-            // NPCs + doors), making them all render see-through (no
-            // back-face cull). The see-through-head symptom in the
-            // ACDREAM_A8_DISABLE_CULL=1 A/B test was caused exactly by
-            // this state leak. Re-enabling cull here restores the
-            // dispatcher's expected default and updates our static cache
-            // so the next Render call's first SetCullMode comparison is
-            // correct.
-            _gl.Enable(EnableCap.CullFace);
-            _gl.CullFace(TriangleFace.Back);
-            _currentCullMode = CullMode.CounterClockwise;
+            // Phase A8 (2026-05-28 visual-gate-#4 follow-up): NO cull-restore
+            // at exit. The Landblock→None override can leave cull DISABLED
+            // if the last batch was Landblock — and that's intentional: the
+            // subsequent `dispatcher.Draw(IndoorPass)` call in
+            // RenderInsideOutAcdream's Step 3 wants cull-off too, because
+            // AC's cottage-shell GfxObj parts (the wooden floor planks +
+            // wall slabs that the player walks on / through) have winding
+            // that gets back-face-culled by the dispatcher's default
+            // FrontFace=CCW. Letting cull stay off through IndoorPass
+            // renders both shell and cell mesh double-sided, so floors are
+            // visible from above (and inverted-front-facing wall slabs are
+            // visible from inside the room). Step 4's
+            // `gl.Enable(EnableCap.CullFace)` (line ~10768) + the cleanup
+            // block's enable (line ~10870) re-establish cull-back before
+            // LiveDynamic chars / NPCs / doors render — so those still
+            // look solid (no see-through head). The static `_currentVao`
+            // is reset because the next Render call's batch loop needs to
+            // re-issue BindVertexArray regardless; `_currentCullMode` is
+            // intentionally left at None so the cache matches actual GL
+            // state until the next Render call's per-batch SetCullMode
+            // either confirms or re-sets it.
+            //
+            // The retail-faithful long-term move is matching WB's
+            // glFrontFace(CW) globally (GameScene.cs:843) so cull-back
+            // selects the correct side for AC's polygon winding without
+            // double-sided rendering — deferred until a wider audit.
 
             // Update frame stats for probe emission at the call site.
             _lastFrameStats.CellsRendered = filter?.Count ?? snapshot.BatchedByCell.Count;