diff --git a/reverse-linked-list/sejineer.py b/reverse-linked-list/sejineer.py
new file mode 100644
index 000000000..129311d3f
--- /dev/null
+++ b/reverse-linked-list/sejineer.py
@@ -0,0 +1,15 @@
+"""
+시간 복잡도: O(N)
+공간 복잡도: O(1)
+"""
+class Solution:
+    def reverseList(self, head: Optional[ListNode]) -> Optional[ListNode]:
+        prev = None
+
+        while head:
+            nxt = head.next
+            head.next = prev
+            prev = head
+            head = nxt
+        
+        return prev