diff --git a/src/data/biblioteca.json b/src/data/biblioteca.json
index 04ce9b1..86ea50f 100644
--- a/src/data/biblioteca.json
+++ b/src/data/biblioteca.json
@@ -1,4 +1,17 @@
 [
+    {
+        "isbn": "9781506727615",
+        "title": "Mob Psycho 100: Vol. 9",
+        "date": 
+            {
+              "year": "2023",
+              "month": "12",
+              "day": "12",
+              "string": "2023-12-12"
+            },
+        "my_rating": 4,
+        "author": "ONE"
+    },
     {
         "isbn": "9781506727608",
         "title": "Mob Psycho 100: Vol. 8",