diff --git a/onert-micro/onert-micro/include/core/OMRuntimeContext.h b/onert-micro/onert-micro/include/core/OMRuntimeContext.h
index 0c75e9dd631..1a54c37184f 100644
--- a/onert-micro/onert-micro/include/core/OMRuntimeContext.h
+++ b/onert-micro/onert-micro/include/core/OMRuntimeContext.h
@@ -20,6 +20,7 @@
 #include "OMStatus.h"
 
 #include "reader/OMCircleReader.h"
+#include "reader/OMWeightOnlyFormatReader.h"
 
 #include <cstdint>
 
@@ -32,6 +33,7 @@ class OMRuntimeContext
 {
 private:
   reader::OMCircleReader _reader;
+  reader::OMWeightOnlyFormatReader _wof_reader;
 
 public:
   OMRuntimeContext() = default;
@@ -53,6 +55,17 @@ class OMRuntimeContext
     return Ok;
   }
 
+  OMStatus setWofFile(char *wof_ptr)
+  {
+    OMStatus status;
+    _wof_reader.parse(wof_ptr);
+
+    status = _wof_reader.validate(&_reader);
+    if (status != Ok)
+      return status;
+    return Ok;
+  }
+
   const bool isConstTensor(uint32_t tensor_index) { return _reader.isConstTensor(tensor_index); }
 
   const reader::CircleValues *getCircleOutputs() { return _reader.outputs(); }
diff --git a/onert-micro/onert-micro/src/core/OMRuntimeContext.cpp b/onert-micro/onert-micro/src/core/OMRuntimeContext.cpp
index e6b6500352a..e746d4cbd74 100644
--- a/onert-micro/onert-micro/src/core/OMRuntimeContext.cpp
+++ b/onert-micro/onert-micro/src/core/OMRuntimeContext.cpp
@@ -57,6 +57,18 @@ OMStatus OMRuntimeContext::getConstDataByTensorIndex(uint8_t **data, uint16_t te
   if (tensor == nullptr)
     return UnknownError;
 
+  // To handle with separated weights:
+  // 1) first we try to get weigths from wof file (using wof_reader)
+  // 2) If it is not null -> return it
+  // 3) It it is null try to get it from main circle file
+  uint8_t *buffer_data = reinterpret_cast<uint8_t *>(_wof_reader.buffer(tensor_index));
+
+  if (buffer_data != nullptr)
+  {
+    *data = buffer_data;
+    return Ok;
+  }
+
   auto const *buffer = _reader.buffers()->operator[](tensor->buffer())->data();
 
   if (buffer == nullptr)