diff --git a/kommand-lib b/kommand-lib
index 9af2931..e0613cd 160000
--- a/kommand-lib
+++ b/kommand-lib
@@ -1 +1 @@
-Subproject commit 9af293122b860d8c65d68a2bdc02a9c2c5e206cc
+Subproject commit e0613cd05278222b0a2ac1c79a2d4ef317c9cea1
diff --git a/src/main/kotlin/net/hareworks/ghostdisplays/GhostDisplaysPlugin.kt b/src/main/kotlin/net/hareworks/ghostdisplays/GhostDisplaysPlugin.kt
index d5942b0..3a716cc 100644
--- a/src/main/kotlin/net/hareworks/ghostdisplays/GhostDisplaysPlugin.kt
+++ b/src/main/kotlin/net/hareworks/ghostdisplays/GhostDisplaysPlugin.kt
@@ -39,6 +39,10 @@ class GhostDisplaysPlugin : JavaPlugin() {
 
         instance = this
         logger.info("GhostDisplays ready: ${displayRegistry.controllerCount()} controllers active.")
+        
+        server.scheduler.runTaskTimer(this, Runnable {
+            displayRegistry.tick()
+        }, 10L, 10L)
     }
 
     override fun onDisable() {
diff --git a/src/main/kotlin/net/hareworks/ghostdisplays/display/EditSessionManager.kt b/src/main/kotlin/net/hareworks/ghostdisplays/display/EditSessionManager.kt
index 363b2bd..059689f 100644
--- a/src/main/kotlin/net/hareworks/ghostdisplays/display/EditSessionManager.kt
+++ b/src/main/kotlin/net/hareworks/ghostdisplays/display/EditSessionManager.kt
@@ -7,7 +7,6 @@ import org.bukkit.Bukkit
 import org.bukkit.entity.Player
 import org.bukkit.event.EventHandler
 import org.bukkit.event.Listener
-import org.bukkit.event.player.AsyncPlayerChatEvent
 import org.bukkit.event.player.PlayerQuitEvent
 import org.bukkit.plugin.java.JavaPlugin
 
@@ -28,10 +27,12 @@ class EditSessionManager(
     }
 
     @EventHandler(ignoreCancelled = true)
-    fun onPlayerChat(event: AsyncPlayerChatEvent) {
+    fun onPlayerChat(event: io.papermc.paper.event.player.AsyncChatEvent) {
         val displayId = sessions[event.player.uniqueId] ?: return
         event.isCancelled = true
-        val message = event.message
+        val serializer = net.kyori.adventure.text.serializer.plain.PlainTextComponentSerializer.plainText()
+        val message = serializer.serialize(event.message())
+        
         if (message.equals("cancel", ignoreCase = true)) {
             sessions.remove(event.player.uniqueId)
             event.player.sendMessage("GhostDisplays: editing for '$displayId' cancelled.")
diff --git a/src/main/kotlin/net/hareworks/ghostdisplays/internal/controller/DisplayRegistry.kt b/src/main/kotlin/net/hareworks/ghostdisplays/internal/controller/DisplayRegistry.kt
index 39f0c6d..b031b7c 100644
--- a/src/main/kotlin/net/hareworks/ghostdisplays/internal/controller/DisplayRegistry.kt
+++ b/src/main/kotlin/net/hareworks/ghostdisplays/internal/controller/DisplayRegistry.kt
@@ -81,4 +81,19 @@ internal class DisplayRegistry : Listener {
         if (controllers.isEmpty()) return
         controllers.forEach { it.refreshAudience(player) }
     }
+
+    fun tick() {
+        val players = org.bukkit.Bukkit.getOnlinePlayers()
+        if (players.isEmpty()) return
+        val controllers = controllersSnapshot()
+        if (controllers.isEmpty()) return
+        
+        // 最適化: 動的な評価が必要なコントローラーだけ抽出できれば良いが、
+        // 現状はシンプルに全走査する。
+        players.forEach { player ->
+            controllers.forEach { controller ->
+                controller.refreshAudience(player)
+            }
+        }
+    }
 }