diff --git a/app/Models/CharacteristicApproverMaster.php b/app/Models/CharacteristicApproverMaster.php
new file mode 100644
index 0000000..d4c0e07
--- /dev/null
+++ b/app/Models/CharacteristicApproverMaster.php
@@ -0,0 +1,43 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class CharacteristicApproverMaster extends Model
+{
+    use SoftDeletes;
+
+    protected $fillable = [
+        'plant_id',
+        'machine_id',
+        'machine_name',
+        'name1',
+        'mail1',
+        'name2',
+        'mail2',
+        'name3',
+        'mail3',
+        'duration1',
+        'duration2',
+        'duration3',
+        'characteristic_field',
+
+        'created_at',
+        'updated_at',
+        'created_by',
+        'updated_by',
+    ];
+
+    public function plant(): BelongsTo
+    {
+        return $this->belongsTo(Plant::class);
+    }
+
+    public function machine(): BelongsTo
+    {
+        return $this->belongsTo(Machine::class);
+    }
+}