diff --git a/README.md b/README.md
index 2ae6c59..3c60adb 100644
--- a/README.md
+++ b/README.md
@@ -40,11 +40,11 @@ while chat.is_alive():
 from pytchat import LiveChat
 import time
 
-chat = LiveChat("G1w62uEMZ74", callback = func)
-while chat.is_alive():
-    #other background operation here.
-    time.sleep(3)
-
+def main()
+    chat = LiveChat("G1w62uEMZ74", callback = func)
+    #other background operation.
+   
+#callback function is automatically called periodically.
 def func(data):
     for c in data.items:
         print(f"{c.datetime} [{c.author.name}]-{c.message} {c.amountString}")
@@ -58,10 +58,9 @@ import asyncio
 
 async def main():
     chat = LiveChatAsync("G1w62uEMZ74", callback = func)
-    while chat.is_alive():
-        #other background operation here.
-        await asyncio.sleep(3)
+    #other background operation.
 
+#callback function is automatically called periodically.
 async def func(data):
     for c in data.items:
         print(f"{c.datetime} [{c.author.name}]-{c.message} {c.amountString}")
@@ -96,10 +95,9 @@ import asyncio
 
 async def main():
     chat = ReplayChatAsync("G1w62uEMZ74", seektime = 1000, callback = func)
-    while chat.is_alive():
         #other background operation here.
-        await asyncio.sleep(3)
 
+#callback function is automatically called periodically.
 async def func(data):
     for count in range(0,len(data.items)):
         c= data.items[count]
@@ -107,7 +105,7 @@ async def func(data):
             tick=data.items[count+1].timestamp -data.items[count].timestamp
         else:
             tick=0
-        print(f"<{c.timestampText}> [{c.author.name}]-{c.message} {c.amountString}")
+        print(f"<{c.elapsedTime}> [{c.author.name}]-{c.message} {c.amountString}")
         await asyncio.sleep(tick/1000)
 
 loop = asyncio.get_event_loop()
@@ -152,7 +150,7 @@ Structure of each item which got from items() function.
     <td>str</td>
     <td>ex. "2019-10-10 12:34:56"</td>
   </tr>
-    <td>timestampText</td>
+    <td>elapsedTime</td>
     <td>str</td>
     <td>elapsed time. (ex. "1:02:27") *Replay Only.</td>
   </tr>
diff --git a/pytchat/processors/default/renderer/base.py b/pytchat/processors/default/renderer/base.py
index 61e7d4c..e11e42f 100644
--- a/pytchat/processors/default/renderer/base.py
+++ b/pytchat/processors/default/renderer/base.py
@@ -15,9 +15,9 @@ class BaseRenderer:
         self.timestamp = int(timestampUsec/1000)
         tst = self.renderer.get("timestampText")
         if tst:
-            self.timestampText = tst.get("simpleText")
+            self.elapsedTime = tst.get("simpleText")
         else:
-            self.timestampText = ""
+            self.elapsedTime = ""
         self.datetime = self.get_datetime(timestampUsec)
         self.message = self.get_message(self.renderer)
         self.messageEx = self.get_message_ex(self.renderer)
diff --git a/pytchat/processors/default/renderer/paidsticker.py b/pytchat/processors/default/renderer/paidsticker.py
index 5d00bf2..6d89df3 100644
--- a/pytchat/processors/default/renderer/paidsticker.py
+++ b/pytchat/processors/default/renderer/paidsticker.py
@@ -1,12 +1,42 @@
 import re
 from . import currency
-from .paidmessage import LiveChatPaidMessageRenderer
+from .base import BaseRenderer
+superchat_regex = re.compile(r"^(\D*)(\d{1,3}(,\d{3})*(\.\d*)*\b)$")
 
-class LiveChatPaidStickerRenderer(LiveChatPaidMessageRenderer):
+class LiveChatPaidStickerRenderer(BaseRenderer):
     def __init__(self, item):
         super().__init__(item, "superSticker")
 
 
+    def get_snippet(self):
+        super().get_snippet()
+
+        self.author.name = self.renderer["authorName"]["simpleText"]
+
+        amountDisplayString, symbol, amount =(
+            self.get_amountdata(self.renderer)
+        )
+        self.message = ""
+        self.amountValue = amount
+        self.amountString = amountDisplayString
+        self.currency = currency.symbols[symbol]["fxtext"] if currency.symbols.get(symbol) else symbol
+        self.bgColor = self.renderer.get("moneyChipBackgroundColor", 0)
+        self.sticker = "https:"+self.renderer["sticker"]["thumbnails"][0]["url"]
+            
+
+
+    def get_amountdata(self,renderer):
+        amountDisplayString = renderer["purchaseAmountText"]["simpleText"]
+        m = superchat_regex.search(amountDisplayString)
+        if m:
+            symbol = m.group(1)
+            amount = float(m.group(2).replace(',',''))
+        else:
+            symbol = ""
+            amount = 0.0
+        return amountDisplayString, symbol, amount
+
+