diff --git a/src/Arts.cs b/src/Arts.cs
index 850b4a8..83225f8 100644
--- a/src/Arts.cs
+++ b/src/Arts.cs
@@ -13,8 +13,11 @@ static class Arts
     static Material mat_backface = new Material("backface.hlsl");
     static Material mat_justcolor = new Material("justcolor.hlsl");
 
+    static Material mat_slash = new Material("unlit.hlsl");
+
     public static Vec3 shake = new(0, 0, 0);
     // static Quat spin_ori = Quat.Identity;
+    public static Vec3 last_tip_pos = new(0, 0, 0);
 
     static TextStyle text_style;
 
@@ -40,6 +43,8 @@ static class Arts
         mat_backface.DepthWrite = false;
 
         mat_both.Chain = mat_backface;
+
+        mat_slash.FaceCull = Cull.None;
     }
 
     public static void Frame()
@@ -53,12 +58,32 @@ static class Arts
         meshes["Food"].Draw(
             mat_mono,
             Matrix.TRS(
-                Vec3.Zero,
+                V.XYZ(0, 0, -1),
                 Quat.Identity,
-                1.0f
+                0.1f
             )
         );
 
+        Mesh mesh = new();
+        Quat hand_rot = Quat.FromAngles(0, 0, SKMath.Sin(Time.Totalf * 6f) * 30f);
+        Vec3 hand_pos = V.XYZ(SKMath.Sin(Time.Totalf * 1f) * 0.1f, 0, 0);
+        Vec3 tip_pos = hand_pos + hand_rot * V.XYZ(0, 1, 0);
+        mesh.SetData(
+            new Vertex[] {
+                new(    hand_pos, V.XYZ(0,0,1)),
+                new(     tip_pos, V.XYZ(0,0,1)),
+                new(last_tip_pos, V.XYZ(0,0,1))
+            },
+            new uint[] {
+                0, 1, 2
+            }
+        );
+        mesh.Draw(
+            mat_slash,
+            Matrix.T(0, -1.0f, -1)
+        );
+        last_tip_pos = Vec3.Lerp(last_tip_pos, tip_pos, Time.Stepf / 0.1f);
+
         // particles
         Particle[] particles = VFX.particles;
         for (int i = 0; i < particles.Length; i++)