diff --git a/Sources/AmiiboService/openapi.yaml b/Sources/AmiiboService/openapi.yaml
index 19a540e..e646fd1 100644
--- a/Sources/AmiiboService/openapi.yaml
+++ b/Sources/AmiiboService/openapi.yaml
@@ -149,10 +149,14 @@ paths:
           style: form
   /amiiboseries:
     get:
-      description: Get a list of all the Amiibo series available in the database.
-      operationId: getAmiiboSeries
       tags:
         - Amiibo
+      summary: Get the amiibo series.
+      description: |
+        Get a list of all the Amiibo series available in the database.
+
+        Please refer to [the documentation of the endpoint](https://www.amiiboapi.com/docs/#series) for further information.
+      operationId: getAmiiboSeries
       parameters:
         - $ref: '#/components/parameters/Key'
           description: A key of an amiibo series to include in the response.
@@ -160,11 +164,15 @@ paths:
           description: A name of an amiibo series key to include in the response.
       responses:
         '200':
-          $ref: '#/components/responses/SuccessTuple'
+          description: Successful response returning an object that contains one or more amiibo series.
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/AmiiboSeriesWrapper'
         '400':
-          description: An amiibo series bad request.
+          $ref: '#/components/responses/BadRequest'
         '404':
-          description: An amiibo series not found.
+          $ref: '#/components/responses/NotFound'
         '500':
           description: Service is not available.
   /character:
@@ -412,6 +420,16 @@ components:
           description: A release date for North America, if any.
           type: string
           format: date-time
+    AmiiboSeries:
+      description: A type that represents an amiibo series.
+      allOf:
+        - $ref: '#/components/schemas/Tuple'
+        - type: object
+          properties:
+            key:
+              description: A key of an amiibo series.
+            name: 
+              description: A name of an amiibo series.
     AmiiboType:
       description: A type that represents an amiibo type.
       allOf:
@@ -497,11 +515,21 @@ components:
       items:
         description: A list if `Amiibo` instance.
         $ref: '#/components/schemas/Amiibo'
+    AmiiboSeriesList:
+      description: A type that represents a list of amiibo series.
+      type: array
+      items:
+        $ref: '#/components/schemas/AmiiboSeries'
     AmiiboTypeList:
       description: A type that represents a list of amiibo types.
       type: array
       items:
         $ref: '#/components/schemas/AmiiboType'
+    GameCharacterList:
+      description: A type that represents a list of game characters.
+      type: array
+      items:
+        $ref: '#/components/schemas/GameCharacter'
     GameSeriesList:
       description: A type that represents a list of game series.
       type: array
@@ -517,6 +545,17 @@ components:
             - $ref: '#/components/schemas/AmiiboList'
       required:
         - amiibo
+    AmiiboSeriesWrapper:
+      description: A type that wraps either one or a list of amiibo series.
+      type: object
+      properties:
+        amiibo: 
+          description: A container that have one or more amiibo series.
+          oneOf:
+            - $ref: '#/components/schemas/AmiiboSeries'
+            - $ref: '#/components/schemas/AmiiboSeriesList'
+      required: 
+        - amiibo    
     AmiiboTypeWrapper:
       description: A type that wraps either one or a list of amiibo types.
       type: object