diff --git a/src/main/java/org/ntlab/acanthus_server/entities/Layer.java b/src/main/java/org/ntlab/acanthus_server/entities/Layer.java
new file mode 100644
index 0000000..c4a89d6
--- /dev/null
+++ b/src/main/java/org/ntlab/acanthus_server/entities/Layer.java
@@ -0,0 +1,16 @@
+package org.ntlab.acanthus_server.entities;
+
+import java.util.ArrayList;
+
+public class Layer {
+    private ArrayList<Stroke> strokes = new ArrayList<>();
+
+    public ArrayList<Stroke> getStrokes() {
+        return this.strokes;
+    }
+
+    public void setStrokes(ArrayList<Stroke> strokes) {
+        this.strokes = strokes;
+    }
+
+}
diff --git a/src/main/java/org/ntlab/acanthus_server/entities/Layers.java b/src/main/java/org/ntlab/acanthus_server/entities/Layers.java
deleted file mode 100644
index e6f860d..0000000
--- a/src/main/java/org/ntlab/acanthus_server/entities/Layers.java
+++ /dev/null
@@ -1,4 +0,0 @@
-package org.ntlab.acanthus_server.entities;
-
-public class Layers {
-}
diff --git a/src/main/java/org/ntlab/acanthus_server/resources/gallery/StrokesRest.java b/src/main/java/org/ntlab/acanthus_server/resources/gallery/StrokesRest.java
index eca4230..5e0453f 100644
--- a/src/main/java/org/ntlab/acanthus_server/resources/gallery/StrokesRest.java
+++ b/src/main/java/org/ntlab/acanthus_server/resources/gallery/StrokesRest.java
@@ -1,5 +1,6 @@
 package org.ntlab.acanthus_server.resources.gallery;
 
+import org.ntlab.acanthus_server.entities.Layer;
 import org.ntlab.acanthus_server.entities.Position;
 import org.ntlab.acanthus_server.entities.Stroke;
 import org.ntlab.acanthus_server.entities.Work;
@@ -9,28 +10,50 @@
 import javax.ws.rs.*;
 import javax.ws.rs.core.MediaType;
 import java.util.ArrayList;
-import java.util.Collection;
-import java.util.HashMap;
 
 @Component
 @Path("/gallery")
 public class StrokesRest {
-    private ArrayList<Stroke> strokes = new ArrayList<>();
+    private ArrayList<Layer> layers = new ArrayList<>();
     private Gallery gallery = Gallery.getInstance();
 
+    @Path("/{aid}/pageMap/0/layers")
+    @GET
+    @Produces(MediaType.APPLICATION_JSON)
+    public Integer getLayers(@PathParam("aid") Integer aid) {
+        var animation = gallery.getAnimationInformation(aid);
+
+        return layers.size();
+    }
+
+    @Path("/{aid}/pageMap/0/layers")
+    @POST
+    @Produces(MediaType.APPLICATION_JSON)
+    public Integer addLayers(@PathParam("aid") Integer aid) {
+        var animation = gallery.getAnimationInformation(aid);
+
+        if (layers.size() < 4) {
+            Layer layer = new Layer();
+            layers.add(layer);
+        }
+
+        return layers.size();
+    }
+
     // _/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
     // 1ページの１レイヤーに置ける筆跡情報を全て取得します
     // 成功時のレスポンス：strokeNo{pen, color, thickness, potions{x, y}}
     // @PathParam Integer aid     作品ID
     // @PathParam Integer pid     ページのID 今回は0
     // @PathParam Integer layerNo レイヤーの番号 今回は0
-    @Path("/{aid}/pageMap/0/layers/0/strokes")
+    @Path("/{aid}/pageMap/0/layers/{layerNo}/strokes")
     @GET
     @Produces(MediaType.APPLICATION_JSON)
-    public ArrayList<Stroke> getStrokeRest(@PathParam("aid") Integer aid) {
+    public ArrayList<Stroke> getStrokeRest(@PathParam("aid") Integer aid, @PathParam("layerNo") Integer layerNo) {
         var animation = gallery.getAnimationInformation(aid);
 
-        return this.strokes;
+        return layers.get(layerNo).getStrokes();
+
 //        if(animation != null) {
 //            return this.Test;
 //        }else{
@@ -49,17 +72,19 @@
     // @Formparam Integer pen      ペン情報
     // @Formparam Integer color    色情報
     // @Formparam Integer thick    太さ情報
-    @Path("/{aid}/pageMap/0/layers/0/strokes")
+    @Path("/{aid}/pageMap/0/layers/{layerNo}/strokes")
     @POST
     @Produces(MediaType.APPLICATION_JSON)
-    public Integer addStrokes(@PathParam("aid") Integer aid, @FormParam("uid") Integer uid, @FormParam("uidToken") String uidToken,
+    public Integer addStrokes(@PathParam("aid") Integer aid, @PathParam("layerNo") Integer layerNo, @FormParam("uid") Integer uid, @FormParam("uidToken") String uidToken,
                              @FormParam("pen") Integer pen, @FormParam("color") Integer color, @FormParam("thick") Integer thick) {
         var animation = gallery.getAnimationInformation(aid);
 
+        var strokes = layers.get(layerNo).getStrokes();
+
         Stroke stroke = new Stroke();
         stroke.addStrokes(pen, color, thick); // 線の情報を追加
         stroke.setStrokeNo(strokes.size());   // strokeNoに現在のstrokesのsizeを入れる
-        this.strokes.add(stroke);
+        strokes.add(stroke);
 //        if(animation != null) {
 //            this.Test.setStrokes(pen, color, thick);
 //        }else{
@@ -74,12 +99,14 @@
     // 全座標値を取得する
     // @PathParam Integer aid      作品のID
     // @PathParam Integer strokeNo 線番号
-    @Path("/{aid}/pageMap/0/layers/0/strokes/{strokeNo}/position")
+    @Path("/{aid}/pageMap/0/layers/{layerNo}/strokes/{strokeNo}/position")
     @GET
     @Produces(MediaType.APPLICATION_JSON)
-    public ArrayList<Position> getPositions(@PathParam("aid") Integer aid, @PathParam("strokeNo") Integer strokeNo) {
+    public ArrayList<Position> getPositions(@PathParam("aid") Integer aid, @PathParam("layerNo") Integer layerNo, @PathParam("strokeNo") Integer strokeNo) {
         var animation = gallery.getAnimationInformation(aid);
 
+        var strokes = layers.get(layerNo).getStrokes();
+
         Stroke stroke = strokes.get(strokeNo); // 指定したstrokeNoのstrokesを呼び出す
         return stroke.getPositions();          // 呼び出したstrokesの情報を返す
 //        if(animation != null) {
@@ -96,12 +123,14 @@
     // @PathParam Integer strokeNo 線番号
     // @FormParam Integer x        x座標
     // @FormParam Integer y        y座標
-    @Path("/{aid}/pageMap/0/layers/0/strokes/{strokeNo}/position")
+    @Path("/{aid}/pageMap/0/layers/{layerNo}/strokes/{strokeNo}/position")
     @POST
     @Produces(MediaType.APPLICATION_JSON)
-    public Integer addPositions(@PathParam("aid") Integer aid, @PathParam("strokeNo") Integer strokeNo, @FormParam("x") Float x, @FormParam("y") Float y) {
+    public Integer addPositions(@PathParam("aid") Integer aid, @PathParam("strokeNo") Integer strokeNo, @PathParam("layerNo") Integer layerNo, @FormParam("x") Float x, @FormParam("y") Float y) {
         var animation = gallery.getAnimationInformation(aid);
 
+        var strokes = layers.get(layerNo).getStrokes();
+
         Position position = new Position();
         position.setXY(x, y);
         Stroke stroke = strokes.get(strokeNo); // 指定したstrokeNoのstrokesを呼び出す