diff --git a/Source/Client/Session.h b/Source/Client/Session.h
index cf97e3cca..f366c0c85 100644
--- a/Source/Client/Session.h
+++ b/Source/Client/Session.h
@@ -701,6 +701,7 @@ public:
   const ActionFrame* GetSyncedFrame(CActRes* baseAct, CActRes* act, unsigned action, int baseFrame, std::uint32_t startTime, int* frame);
   float GetNpcLocationRadius(int job, bool riding);
   int GetRidingJob(int job);
+  void InitNpcLocationRadius();
   int GetSpriteJob(int job, int costumeJob, bool spriteIndex);
   bool HasRequiredItems() const;
   bool IsSlotItemIdentity(std::uint32_t id) const;
diff --git a/Source/Contents/NpcLocationRadius.cpp b/Source/Contents/NpcLocationRadius.cpp
index 7c24d7c30..d8f02076a 100644
--- a/Source/Contents/NpcLocationRadius.cpp
+++ b/Source/Contents/NpcLocationRadius.cpp
@@ -436,3 +436,15 @@ int CSession::GetRidingJob(int job) {
 
   return job;
 }
+
+// OFFSET: 0x00DF31C0
+// FUNCTION: fn_23504
+void CSession::InitNpcLocationRadius() {
+  this->m_npcLocationRadius.clear();
+  for (int job = 0; job < 32003; ++job) {
+    double factor = 0.0;
+    if (this->m_hotkeyScript->Call("ReqshadowFactor", "d>l", job, &factor) && factor >= 0.0) {
+      this->m_npcLocationRadius.try_emplace(job, static_cast<float>(factor));
+    }
+  }
+}