diff --git a/bot/routes/bipolar_mode.py b/bot/routes/bipolar_mode.py
index dc1a406..fa2a687 100644
--- a/bot/routes/bipolar_mode.py
+++ b/bot/routes/bipolar_mode.py
@@ -129,7 +129,7 @@ def trigger_argument(data: BipolarTriggerRequest):
     if message_id:
         async def trigger_from_message():
             success, error = await force_trigger_argument_from_message_id(
-                channel_id, message_id, globals.client, data.context
+                channel_id, message_id, globals.client, data.context, topic=data.topic
             )
             if not success:
                 logger.error(f"Failed to trigger argument from message: {error}")
@@ -148,8 +148,8 @@ def trigger_argument(data: BipolarTriggerRequest):
     if not channel:
         return JSONResponse(status_code=404, content={"status": "error", "message": f"Channel {channel_id} not found"})
 
-    # Trigger the argument
-    globals.client.loop.create_task(force_trigger_argument(channel, globals.client, data.context))
+    # Trigger the argument with optional custom topic
+    globals.client.loop.create_task(force_trigger_argument(channel, globals.client, data.context, topic=data.topic))
 
     return {
         "status": "ok",
diff --git a/bot/routes/models.py b/bot/routes/models.py
index d203900..f49e018 100644
--- a/bot/routes/models.py
+++ b/bot/routes/models.py
@@ -46,6 +46,7 @@ class BipolarTriggerRequest(BaseModel):
     channel_id: str  # String to handle large Discord IDs from JS
     message_id: str = None  # Optional: starting message ID (string)
     context: str = ""
+    topic: str = ""  # Optional: custom argument topic (overrides random topic selection)
 
 
 class ManualCropRequest(BaseModel):
diff --git a/bot/static/index.html b/bot/static/index.html
index c928e66..acfa907 100644
--- a/bot/static/index.html
+++ b/bot/static/index.html
@@ -238,6 +238,14 @@
           <input type="text" id="bipolar-context" placeholder="e.g., They're fighting about who's the real Miku..." style="width: 100%; margin-top: 0.3rem;">
         </div>
         
+        <div style="margin-bottom: 1rem;">
+          <label for="bipolar-topic">Argument Topic (optional — overrides random topic):</label>
+          <input type="text" id="bipolar-topic" placeholder="e.g., Who deserves the spotlight? A philosophical debate about worth..." style="width: 100%; margin-top: 0.3rem;">
+          <div style="font-size: 0.75rem; color: #777; margin-top: 0.2rem;">
+            Leave blank for random topic selection. Enter a custom theme to frame the argument uniquely.
+          </div>
+        </div>
+        
         <button onclick="triggerBipolarArgument()" style="background: #9932CC; color: #fff; border: none; padding: 0.5rem 1rem; border-radius: 4px; cursor: pointer;">
           ⚔️ Trigger Argument
         </button>
diff --git a/bot/static/js/modes.js b/bot/static/js/modes.js
index 7bc8f13..0c803c0 100644
--- a/bot/static/js/modes.js
+++ b/bot/static/js/modes.js
@@ -249,6 +249,7 @@ async function triggerBipolarArgument() {
   const channelIdInput = document.getElementById('bipolar-channel-id').value.trim();
   const messageIdInput = document.getElementById('bipolar-message-id').value.trim();
   const context = document.getElementById('bipolar-context').value;
+  const topic = document.getElementById('bipolar-topic').value.trim();
   const statusDiv = document.getElementById('bipolar-status');
 
   if (!channelIdInput) {
@@ -278,6 +279,10 @@ async function triggerBipolarArgument() {
       requestBody.message_id = messageIdInput;
     }
 
+    if (topic) {
+      requestBody.topic = topic;
+    }
+
     const result = await apiCall('/bipolar-mode/trigger-argument', 'POST', requestBody);
 
     if (result.status === 'error') {
@@ -290,6 +295,7 @@ async function triggerBipolarArgument() {
     showNotification(`⚔️ Argument triggered!`);
 
     document.getElementById('bipolar-context').value = '';
+    document.getElementById('bipolar-topic').value = '';
     document.getElementById('bipolar-message-id').value = '';
 
     loadActiveArguments();
diff --git a/bot/utils/bipolar_mode.py b/bot/utils/bipolar_mode.py
index a1f0043..3589c38 100644
--- a/bot/utils/bipolar_mode.py
+++ b/bot/utils/bipolar_mode.py
@@ -1175,7 +1175,7 @@ def should_end_argument(channel_id: int) -> tuple:
     return False, None
 
 
-async def run_argument(channel: discord.TextChannel, client, trigger_context: str = "", starting_message: discord.Message = None):
+async def run_argument(channel: discord.TextChannel, client, trigger_context: str = "", starting_message: discord.Message = None, argument_topic: str = None):
     """Run a full argument event between both Mikus
     
     Args:
@@ -1184,6 +1184,9 @@ async def run_argument(channel: discord.TextChannel, client, trigger_context: st
         trigger_context: Optional context about what triggered the argument
         starting_message: Optional message to use as the first message in the argument
                          (the opposite persona will respond to it)
+        argument_topic: Optional custom topic string. If provided, overrides the
+                       random topic selection. Pass empty string to force no topic.
+                       Pass None (default) to use random topic selection.
     """
     from utils.llm import query_llama
     from utils.conversation_history import conversation_history
@@ -1225,8 +1228,19 @@ async def run_argument(channel: discord.TextChannel, client, trigger_context: st
     conversation_log = []
     
     try:
-        # Pick a dynamic argument topic to give this argument a unique framing
-        argument_topic = pick_argument_topic(channel_id)
+        # Pick a dynamic argument topic to give this argument a unique framing.
+        # If caller provided a custom topic, use it instead of random selection.
+        # If caller passed empty string, use no topic (no theme guidance).
+        if argument_topic is None:
+            # Default: random weighted selection from rotation system
+            argument_topic = pick_argument_topic(channel_id)
+        elif argument_topic == "":
+            # Explicitly no topic — skip theme guidance entirely
+            argument_topic = ""
+            logger.info(f"No argument topic requested for channel {channel_id}")
+        else:
+            # Custom topic from caller (e.g. Web UI field)
+            logger.info(f"Using custom argument topic for channel {channel_id}: '{argument_topic[:80]}...'")
         
         # If no starting message, generate the initial interrupting message
         if last_message is None:
@@ -1524,7 +1538,7 @@ async def maybe_trigger_argument(channel: discord.TextChannel, client, context:
     return False
 
 
-async def force_trigger_argument(channel: discord.TextChannel, client, context: str = "", starting_message: discord.Message = None):
+async def force_trigger_argument(channel: discord.TextChannel, client, context: str = "", starting_message: discord.Message = None, topic: str = None):
     """Force trigger an argument (for manual triggers)
     
     Args:
@@ -1532,6 +1546,7 @@ async def force_trigger_argument(channel: discord.TextChannel, client, context:
         client: Discord client
         context: Optional context string
         starting_message: Optional message to use as the first message in the argument
+        topic: Optional custom argument topic. None = random, "" = no topic, str = custom.
     """
     if not globals.BIPOLAR_MODE:
         logger.warning("Cannot trigger argument - bipolar mode is not enabled")
@@ -1541,11 +1556,11 @@ async def force_trigger_argument(channel: discord.TextChannel, client, context:
         logger.warning("Argument already in progress in this channel")
         return False
     
-    create_tracked_task(run_argument(channel, client, context, starting_message), task_name="bipolar_argument_forced")
+    create_tracked_task(run_argument(channel, client, context, starting_message, argument_topic=topic), task_name="bipolar_argument_forced")
     return True
 
 
-async def force_trigger_argument_from_message_id(channel_id: int, message_id: int, client, context: str = ""):
+async def force_trigger_argument_from_message_id(channel_id: int, message_id: int, client, context: str = "", topic: str = None):
     """Force trigger an argument starting from a specific message ID
     
     Args:
@@ -1579,5 +1594,5 @@ async def force_trigger_argument_from_message_id(channel_id: int, message_id: in
         return False, f"Failed to fetch message: {str(e)}"
     
     # Trigger the argument with this message as starting point
-    create_tracked_task(run_argument(channel, client, context, message), task_name="bipolar_argument_from_msg")
+    create_tracked_task(run_argument(channel, client, context, message, argument_topic=topic), task_name="bipolar_argument_from_msg")
     return True, None