diff --git a/Misaki.HighPerformance.Jobs/JobScheduler.cs b/Misaki.HighPerformance.Jobs/JobScheduler.cs
index 39cb10f..736185e 100644
--- a/Misaki.HighPerformance.Jobs/JobScheduler.cs
+++ b/Misaki.HighPerformance.Jobs/JobScheduler.cs
@@ -247,20 +247,20 @@ public sealed unsafe class JobScheduler : IDisposable
     public JobHandle Schedule<T>(ref T job, int threadIndex, JobHandle dependency)
         where T : unmanaged, IJob
     {
-        var jobData = _jobDataAllocator.Allocate(MemoryUtility.SizeOf<T>(), MemoryUtility.AlignOf<T>());
-        if (jobData == null)
+        var pJobData = _jobDataAllocator.Allocate(MemoryUtility.SizeOf<T>(), MemoryUtility.AlignOf<T>());
+        if (pJobData == null)
         {
             return JobHandle.Invalid;
         }
 
         fixed (T* pJob = &job)
         {
-            MemoryUtility.MemCpy(pJob, jobData, MemoryUtility.SizeOf<T>());
+            MemoryUtility.MemCpy(pJobData, pJob, MemoryUtility.SizeOf<T>());
         }
 
         var jobInfo = new JobInfo
         {
-            pJobData = jobData,
+            pJobData = pJobData,
             pExecutionFunc = &JobExecutor.Execute<T>,
 
             remainingBatches = 1,
@@ -323,15 +323,15 @@ public sealed unsafe class JobScheduler : IDisposable
     public JobHandle ScheduleParallel<T>(ref T job, int totalIteration, int batchSize, int threadIndex, JobHandle dependency)
         where T : unmanaged, IJobParallelFor
     {
-        var jobData = _jobDataAllocator.Allocate(MemoryUtility.SizeOf<T>(), MemoryUtility.AlignOf<T>());
-        if (jobData == null)
+        var pJobData = _jobDataAllocator.Allocate(MemoryUtility.SizeOf<T>(), MemoryUtility.AlignOf<T>());
+        if (pJobData == null)
         {
             return JobHandle.Invalid;
         }
 
         fixed (T* pJob = &job)
         {
-            MemoryUtility.MemCpy(pJob, jobData, MemoryUtility.SizeOf<T>());
+            MemoryUtility.MemCpy(pJobData, pJob, MemoryUtility.SizeOf<T>());
         }
 
         var optimalBatchSize = Math.Max(1, batchSize);
@@ -339,7 +339,7 @@ public sealed unsafe class JobScheduler : IDisposable
 
         var jobInfo = new JobInfo
         {
-            pJobData = jobData,
+            pJobData = pJobData,
             pExecutionFunc = &JobExecutor.ExecuteParallel<T>,
 
             remainingBatches = totalBatches,
diff --git a/Misaki.HighPerformance.Jobs/TempJobAllocator.cs b/Misaki.HighPerformance.Jobs/TempJobAllocator.cs
index 23bfc1b..1b7c0b3 100644
--- a/Misaki.HighPerformance.Jobs/TempJobAllocator.cs
+++ b/Misaki.HighPerformance.Jobs/TempJobAllocator.cs
@@ -66,7 +66,7 @@ public unsafe struct TempJobAllocator : IAllocator, IDisposable
             return null;
         }
 
-        MemoryUtility.MemCpy(newPtr, ptr, Math.Min(oldSize, newSize));
+        MemoryUtility.MemCpy(ptr, newPtr,Math.Min(oldSize, newSize));
 
         return newPtr;
     }
diff --git a/Misaki.HighPerformance.LowLevel/Collections/UnTypedArray.cs b/Misaki.HighPerformance.LowLevel/Collections/UnTypedArray.cs
index fdabbda..be267a9 100644
--- a/Misaki.HighPerformance.LowLevel/Collections/UnTypedArray.cs
+++ b/Misaki.HighPerformance.LowLevel/Collections/UnTypedArray.cs
@@ -123,7 +123,7 @@ public unsafe struct UnTypedArray : IUnTypedCollection
 
         fixed (T* pDest = destination)
         {
-            MemCpy(_buffer, pDest, _size);
+            MemCpy(pDest, _buffer, _size);
         }
     }
 
@@ -147,7 +147,7 @@ public unsafe struct UnTypedArray : IUnTypedCollection
 
         fixed (T* pDest = destination)
         {
-            MemCpy((byte*)_buffer + sourceOffset, pDest + destinationIndex, length * sizeOfElement);
+            MemCpy(pDest + destinationIndex, (byte*)_buffer + sourceOffset, length * sizeOfElement);
         }
     }
 
@@ -169,7 +169,7 @@ public unsafe struct UnTypedArray : IUnTypedCollection
 
         fixed (T* pSrc = source)
         {
-            MemCpy(pSrc, _buffer, sourceSize);
+            MemCpy(_buffer, pSrc, sourceSize);
         }
     }
 
@@ -193,7 +193,7 @@ public unsafe struct UnTypedArray : IUnTypedCollection
 
         fixed (T* pSrc = source)
         {
-            MemCpy(pSrc + sourceIndex, (byte*)_buffer + destinationOffset, length * sizeOfElement);
+            MemCpy((byte*)_buffer + destinationOffset, pSrc + sourceIndex, length * sizeOfElement);
         }
     }
 
diff --git a/Misaki.HighPerformance.LowLevel/Utilities/UnsafeCollectionExtensions.cs b/Misaki.HighPerformance.LowLevel/Utilities/UnsafeCollectionExtensions.cs
index d6fafe5..a5fea03 100644
--- a/Misaki.HighPerformance.LowLevel/Utilities/UnsafeCollectionExtensions.cs
+++ b/Misaki.HighPerformance.LowLevel/Utilities/UnsafeCollectionExtensions.cs
@@ -29,7 +29,7 @@ public static unsafe class UnsafeCollectionExtensions
 
         fixed (T* pDest = destination)
         {
-            MemCpy(source.GetUnsafePtr(), pDest, (uint)(source.Count * sizeof(T)));
+            MemCpy(pDest, source.GetUnsafePtr(), (uint)(source.Count * sizeof(T)));
         }
     }
 
@@ -54,7 +54,7 @@ public static unsafe class UnsafeCollectionExtensions
 
         fixed (T* pDest = destination)
         {
-            MemCpy((byte*)source.GetUnsafePtr() + sourceIndex * sizeof(T), pDest + destinationIndex, (uint)(length * sizeof(T)));
+            MemCpy(pDest + destinationIndex, (byte*)source.GetUnsafePtr() + sourceIndex * sizeof(T), (uint)(length * sizeof(T)));
         }
     }
 
@@ -76,7 +76,7 @@ public static unsafe class UnsafeCollectionExtensions
 
         fixed (T* pSrc = source)
         {
-            MemCpy(pSrc, destination.GetUnsafePtr(), (uint)(source.Length * sizeof(T)));
+            MemCpy(destination.GetUnsafePtr(), pSrc, (uint)(source.Length * sizeof(T)));
         }
     }
 
@@ -101,7 +101,7 @@ public static unsafe class UnsafeCollectionExtensions
 
         fixed (T* pSrc = source)
         {
-            MemCpy(pSrc + sourceIndex, (byte*)destination.GetUnsafePtr() + destinationIndex * sizeof(T), (uint)(length * sizeof(T)));
+            MemCpy((byte*)destination.GetUnsafePtr() + destinationIndex * sizeof(T), pSrc + sourceIndex, (uint)(length * sizeof(T)));
         }
     }
 
@@ -118,7 +118,7 @@ public static unsafe class UnsafeCollectionExtensions
         var array = new UnsafeArray<T>(source.Length, allocator);
         fixed (T* pSrc = source)
         {
-            MemCpy(pSrc, array.GetUnsafePtr(), (uint)(source.Length * sizeof(T)));
+            MemCpy(array.GetUnsafePtr(), pSrc, (uint)(source.Length * sizeof(T)));
         }
 
         return array;
@@ -137,7 +137,7 @@ public static unsafe class UnsafeCollectionExtensions
         var list = new UnsafeList<T>(source.Count, allocator);
         fixed (T* pSrc = CollectionsMarshal.AsSpan(source))
         {
-            MemCpy(pSrc, list.GetUnsafePtr(), (uint)(source.Count * sizeof(T)));
+            MemCpy(list.GetUnsafePtr(), pSrc, (uint)(source.Count * sizeof(T)));
         }
 
         return list;
@@ -171,4 +171,4 @@ public static unsafe class UnsafeCollectionExtensions
         span.CopyTo(CollectionsMarshal.AsSpan(list));
         return list;
     }
-}
\ No newline at end of file
+}