diff --git a/titles/sao/base.py b/titles/sao/base.py
index a73cb25..b7d814e 100644
--- a/titles/sao/base.py
+++ b/titles/sao/base.py
@@ -874,40 +874,18 @@ class SaoBase:
     def handle_c90a(self, header: SaoRequestHeader, request: bytes) -> bytes:
         #quest/episode_play_end_unanalyzed_log_fixed
 
-        req = bytes.fromhex(request)[24:]
+        req = SaoEpisodePlayEndUnanalyzedLogFixedRequest(header, request)
 
-        req_struct = Struct(
-            Padding(16),
-            "ticket_id_size" / Rebuild(Int32ub, len_(this.ticket_id) * 2),  # calculates the length of the ticket_id
-            "ticket_id" / PaddedString(this.ticket_id_size, "utf_16_le"),  # ticket_id is a (zero) padded string
-            "user_id_size" / Rebuild(Int32ub, len_(this.user_id) * 2),  # calculates the length of the user_id
-            "user_id" / PaddedString(this.user_id_size, "utf_16_le"),  # user_id is a (zero) padded string
-        )
-
-        req_data = req_struct.parse(req)
-        user_id = req_data.user_id
-
-        end_session_data = self.game_data.item.get_end_session(user_id)
+        end_session_data = self.game_data.item.get_end_session(req.user_id)
 
         resp = SaoEpisodePlayEndUnanalyzedLogFixedResponse(header.cmd +1, end_session_data[4])
         return resp.make()
 
     def handle_c91a(self, header: SaoRequestHeader, request: bytes) -> bytes: # handler is identical to the episode
         #quest/trial_tower_play_end_unanalyzed_log_fixed
-        req = bytes.fromhex(request)[24:]
+        req = TrialTowerPlayEndUnanalyzedLogFixed(header, request)
 
-        req_struct = Struct(
-            Padding(16),
-            "ticket_id_size" / Rebuild(Int32ub, len_(this.ticket_id) * 2),  # calculates the length of the ticket_id
-            "ticket_id" / PaddedString(this.ticket_id_size, "utf_16_le"),  # ticket_id is a (zero) padded string
-            "user_id_size" / Rebuild(Int32ub, len_(this.user_id) * 2),  # calculates the length of the user_id
-            "user_id" / PaddedString(this.user_id_size, "utf_16_le"),  # user_id is a (zero) padded string
-        )
-
-        req_data = req_struct.parse(req)
-        user_id = req_data.user_id
-
-        end_session_data = self.game_data.item.get_end_session(user_id)
+        end_session_data = self.game_data.item.get_end_session(req.user_id)
 
         resp = SaoEpisodePlayEndUnanalyzedLogFixedResponse(header.cmd +1, end_session_data[4])
         return resp.make()
diff --git a/titles/sao/handlers/base.py b/titles/sao/handlers/base.py
index db6e98f..836372b 100644
--- a/titles/sao/handlers/base.py
+++ b/titles/sao/handlers/base.py
@@ -1798,6 +1798,20 @@ class SaoTrialTowerPlayEndResponse(SaoBaseResponse):
 class SaoEpisodePlayEndUnanalyzedLogFixedRequest(SaoBaseRequest):
     def __init__(self, header: SaoRequestHeader, data: bytes) -> None:
         super().__init__(header, data)
+        off = 0
+        ticket_id = decode_str(data, off)
+        self.ticket_id = ticket_id[0]
+        off += ticket_id[1]
+
+        user_id = decode_str(data, off)
+        self.user_id = user_id[0]
+        off += user_id[1]
+
+        self.episode_id = decode_int(data, off)
+        off += INT_OFF
+
+        self.rarity_up_exec_flag = decode_byte(data, off)
+        off += BYTE_OFF
 
 class SaoEpisodePlayEndUnanalyzedLogFixedResponse(SaoBaseResponse):
     def __init__(self, cmd, end_session_data) -> None:
@@ -2989,3 +3003,21 @@ class SaoChangePartyRequest(SaoBaseRequest):
             tmp = PartyData(data, off)
             self.party_data_list.append(tmp)
             off += tmp.get_size()
+
+class TrialTowerPlayEndUnanalyzedLogFixed(SaoBaseRequest):
+    def __init__(self, header: SaoRequestHeader, data: bytes) -> None:
+        super().__init__(header, data)
+        off = 0
+        ticket_id = decode_str(data, off)
+        self.ticket_id = ticket_id[0]
+        off += ticket_id[1]
+
+        user_id = decode_str(data, off)
+        self.user_id = user_id[0]
+        off += user_id[1]
+
+        self.trial_tower_id = decode_int(data, off)
+        off += INT_OFF
+
+        self.rarity_up_exec_flag = decode_byte(data, off)
+        off += BYTE_OFF