diff --git a/public/index.html b/public/index.html
index 78b2370..97528eb 100644
--- a/public/index.html
+++ b/public/index.html
@@ -42,7 +42,10 @@
             value='${localStorage.getItem("fontSize") || 12}'
           />
         </div>
-        <div class="warning"><div class="warningBox">hello</div></div>
+        <div class="warning">
+          Warning: Circular Deps
+          <div class="warningBox"></div>
+        </div>
       </div>
     </div>
     <script type="module" src="./graph.js"></script>
diff --git a/src/utils/depUtils.ts b/src/utils/depUtils.ts
index c05b610..442d756 100644
--- a/src/utils/depUtils.ts
+++ b/src/utils/depUtils.ts
@@ -127,11 +127,9 @@ export function removeDuplicateCircularDeps(
   const result: [string, string][] = [];
 
   dependencies.forEach((pair) => {
-    // 각 쌍을 정렬하여 중복 체크 가능하게 만듦
     const sortedPair = pair.slice().sort();
     const key = `${sortedPair[0]}-${sortedPair[1]}`;
 
-    // 이미 존재하지 않는 경우에만 추가
     if (!uniqueDeps.has(key)) {
       uniqueDeps.add(key);
       result.push(pair);
diff --git a/src/warningBox.ts b/src/warningBox.ts
index 439bb03..93b163a 100644
--- a/src/warningBox.ts
+++ b/src/warningBox.ts
@@ -14,9 +14,6 @@ function showAlert(message) {
   const warning = document.querySelector(".warning") as HTMLElement;
   const warningBox = document.querySelector(".warningBox");
 
-  if (warningBox instanceof HTMLElement) {
-    warning.style.display = "inline-block";
-  }
-
+  warning.style.display = "inline-block";
   warningBox.innerHTML = message.map((pair) => pair.join(" ⇄ ")).join("<br>");
 }