diff --git a/cursor/manager/internal/cursor_manager.py b/cursor/manager/internal/cursor_manager.py
index 9cecbf7..3748b51 100644
--- a/cursor/manager/internal/cursor_manager.py
+++ b/cursor/manager/internal/cursor_manager.py
@@ -6,7 +6,7 @@
 
 
 class CursorManager:
-    cursor_dict: dict[str, Cursor]
+    cursor_dict: dict[str, Cursor] = {}
 
     @staticmethod
     def create(conn_id: str):
@@ -18,15 +18,41 @@ def remove(conn_id: str):
         if conn_id in CursorManager.cursor_dict:
             del CursorManager.cursor_dict[conn_id]
 
+    # range 안에 커서가 있는가
     @staticmethod
     def exists_range(start: Point, end: Point) -> list[Cursor]:
-        # 일단 broadcast. 추후 고쳐야 함.
-        return list(CursorManager.cursor_dict.values())
+        result = []
+        for key in CursorManager.cursor_dict:
+            cur = CursorManager.cursor_dict[key]
+            if start.x > cur.position.x:
+                continue
+            if end.x < cur.position.x:
+                continue
+            if start.y < cur.position.y:
+                continue
+            if end.y > cur.position.y:
+                continue
+            result.append(cur)
 
+        return result
+
+    # 커서 view에 tile이 포함되는가
     @staticmethod
     def view_includes(p: Point) -> list[Cursor]:
-        # 일단 broadcast. 추후 고쳐야 함.
-        return list(CursorManager.cursor_dict.values())
+        result = []
+        for key in CursorManager.cursor_dict:
+            cur = CursorManager.cursor_dict[key]
+            if (cur.position.x - cur.width) > p.x:
+                continue
+            if (cur.position.x + cur.width) < p.x:
+                continue
+            if (cur.position.y - cur.height) > p.y:
+                continue
+            if (cur.position.y + cur.height) < p.y:
+                continue
+            result.append(cur)
+
+        return result
 
     @EventBroker.add_receiver(NewConnEvent.NEW_CONN)
     @staticmethod
diff --git a/cursor/manager/test/cursor_manager_test.py b/cursor/manager/test/cursor_manager_test.py
index 998141f..66f29b3 100644
--- a/cursor/manager/test/cursor_manager_test.py
+++ b/cursor/manager/test/cursor_manager_test.py
@@ -1,4 +1,4 @@
-from cursor import Cursor
+from cursor import Cursor, Color
 from cursor.manager import CursorManager
 from event import EventBroker
 from message import Message
@@ -9,15 +9,23 @@
 from warnings import warn
 
 
+def get_cur(conn_id):
+    return Cursor(
+        conn_id=conn_id,
+        position=Point(0, 0),
+        pointer=None,
+        height=10,
+        width=10,
+        color=Color.BLUE
+    )
+
+
 class CursorManagerTestCase(unittest.IsolatedAsyncioTestCase):
     def setUp(self):
-        self.curs_1 = Mock()
-        self.curs_2 = Mock()
-        self.curs_3 = Mock()
         CursorManager.cursor_dict = {
-            "example_1": self.curs_1,
-            "example_2": self.curs_2,
-            "example_3": self.curs_3
+            "example_1": get_cur("example_1"),
+            "example_2": get_cur("example_2"),
+            "example_3": get_cur("example_3")
         }
 
     def tearDown(self):
@@ -39,15 +47,11 @@ def test_remove(self):
     def test_exists_range(self):
         result = CursorManager.exists_range(Point(0, 0), Point(0, 0))
 
-        warn("아직 구현 안됨")
-        # broadcast 기준
         self.assertEqual(len(result), 3)
 
     def test_view_includes(self):
         result = CursorManager.view_includes(Point(0, 0))
 
-        warn("아직 구현 안됨")
-        # broadcast 기준
         self.assertEqual(len(result), 3)
 
 
@@ -99,6 +103,7 @@ async def test_receive_new_conn_without_cursors(self):
         assert got.header["target_conns"][0] == expected_conn_id
 
     async def test_receive_new_conn_with_cursors(self):
+
         # TODO: 쿼리 로직 바뀌면 이것도 같이 바꿔야 함.
         CursorManager.cursor_dict = {
             "some id": Cursor.create("some id")