diff --git a/app/src/main/java/org/ntlab/acanthus_client/entities/Stroke.java b/app/src/main/java/org/ntlab/acanthus_client/entities/Stroke.java
index 3c574a6..2c31ef5 100644
--- a/app/src/main/java/org/ntlab/acanthus_client/entities/Stroke.java
+++ b/app/src/main/java/org/ntlab/acanthus_client/entities/Stroke.java
@@ -1,6 +1,30 @@
 package org.ntlab.acanthus_client.entities;
 
+import java.util.ArrayList;
+
 //-----------------------------------------------------------------
 // 筆跡
 public class Stroke {
+    private static int strokeNoCount; //strokeNoを数えるためだけ
+    private int strokeNo = 0;
+    private int pen;
+    private int color;
+    private int thickness;
+    private ArrayList<Position> positions = new ArrayList<>();
+
+    public int getStrokeNo() {
+        return this.strokeNo;
+    }
+    public int getPen() {
+        return this.pen;
+    }
+    public int getColor() {
+        return this.color;
+    }
+    public int getThickness() {
+        return this.thickness;
+    }
+    public ArrayList<Position> getPositions() {
+        return this.positions;
+    }
 }
diff --git a/app/src/main/java/org/ntlab/acanthus_client/entities/WorkJson.java b/app/src/main/java/org/ntlab/acanthus_client/entities/WorkJson.java
index 2f29ec4..35f411f 100644
--- a/app/src/main/java/org/ntlab/acanthus_client/entities/WorkJson.java
+++ b/app/src/main/java/org/ntlab/acanthus_client/entities/WorkJson.java
@@ -1,4 +1,16 @@
 package org.ntlab.acanthus_client.entities;
 
+import java.util.ArrayList;
+import java.util.Collection;
+
 public class WorkJson {
+    private ArrayList<String> aid = new ArrayList<>();
+
+    public Collection<String> getAid() {
+        return aid;
+    }
+
+    public void setAid(ArrayList<String> aid) {
+        this.aid = aid;
+    }
 }