diff --git a/inc/App.hpp b/inc/App.hpp
index 8b7cf72..5c98448 100644
--- a/inc/App.hpp
+++ b/inc/App.hpp
@@ -1,6 +1,6 @@
 #include <array>
 #include "canvas/Canvas.hpp"
-
+#include "values/DnaManager.hpp"
 class App
 {
 
@@ -21,5 +21,6 @@ private:
   Rectangle likeBox;
   Rectangle disLikeBox;
 
-  Dna dna = {0};
+  Dna *dnaShow = nullptr;
+  DnaManager manager;
 };
diff --git a/inc/values/DnaManager.hpp b/inc/values/DnaManager.hpp
new file mode 100644
index 0000000..a90cab5
--- /dev/null
+++ b/inc/values/DnaManager.hpp
@@ -0,0 +1,11 @@
+#include "values/Dna.hpp"
+
+class DnaManager
+{
+public:
+  DnaManager() = default;
+  Dna *next(bool prevLiked);
+
+private:
+  Dna dna;
+};
diff --git a/src/App.cpp b/src/App.cpp
index 8f2f01a..a4b96c1 100644
--- a/src/App.cpp
+++ b/src/App.cpp
@@ -17,9 +17,8 @@ void App::init(int screenWidth, int screenHeight)
   mrand::setSeed(1);
 
   canvasTexure = LoadRenderTexture(screenWidth, screenWidth);
-
-  newDna(dna);
-  canvas.newGen(canvasTexure, &dna);
+  dnaShow = manager.next(false);
+  canvas.newGen(canvasTexure, dnaShow);
 
   float posY = (screenHeight - screenWidth) / 2.0f;
   float recPosX = screenWidth * 0.2f;
@@ -36,13 +35,13 @@ void App::update()
     Vector2 mouse = GetMousePosition();
     if (CheckCollisionPointRec(mouse, disLikeBox))
     {
-      newDna(dna);
-      canvas.newGen(canvasTexure, &dna);
+      dnaShow = manager.next(false);
+      canvas.newGen(canvasTexure, dnaShow);
     }
     if (CheckCollisionPointRec(mouse, likeBox))
     {
-      newDna(dna);
-      canvas.newGen(canvasTexure, &dna);
+      dnaShow = manager.next(true);
+      canvas.newGen(canvasTexure, dnaShow);
     }
   }
 }
diff --git a/src/values/DnaManager.cpp b/src/values/DnaManager.cpp
new file mode 100644
index 0000000..16dd975
--- /dev/null
+++ b/src/values/DnaManager.cpp
@@ -0,0 +1,7 @@
+#include "values/DnaManager.hpp"
+
+Dna *DnaManager::next(bool prevLiked)
+{
+  newDna(dna);
+  return &dna;
+}
\ No newline at end of file