diff --git a/Moco/View/User/EpisodeView.swift b/Moco/View/User/EpisodeView.swift
index 90d72a2..b98770d 100644
--- a/Moco/View/User/EpisodeView.swift
+++ b/Moco/View/User/EpisodeView.swift
@@ -74,7 +74,7 @@ struct EpisodeView: View {
                                 ) {
                                     if episode.isAvailable || index < userViewModel.userLogin!.availableEpisodeSum {
                                         Task {
-                                            episodeViewModel.setSelectedEpisode(episode)
+                                            episodeViewModel.setSelectedEpisode(episode, index)
 
                                             // open new story page
                                             storyViewModel.fetchStory(0, episodeViewModel.selectedEpisode!)
diff --git a/Moco/ViewModel/EpisodeViewModel.swift b/Moco/ViewModel/EpisodeViewModel.swift
index 4647130..81683bd 100644
--- a/Moco/ViewModel/EpisodeViewModel.swift
+++ b/Moco/ViewModel/EpisodeViewModel.swift
@@ -12,6 +12,7 @@ import SwiftData
     static let shared = EpisodeViewModel()
 
     var selectedEpisode: EpisodeModel?
+    var indexEpisodePlay: Int?
     var episodes: [EpisodeModel]?
 
     init(modelContext: ModelContext? = nil) {
@@ -21,8 +22,9 @@ import SwiftData
         }
     }
 
-    func setSelectedEpisode(_ episode: EpisodeModel) {
+    func setSelectedEpisode(_ episode: EpisodeModel, _ indexEpisode: Int) {
         selectedEpisode = episode
+        indexEpisodePlay = indexEpisode
     }
 
     func fetchEpisodes(storyThemeId: String) {
@@ -51,8 +53,10 @@ import SwiftData
         fetchEpisodes(storyThemeId: selectedStoryTheme.uid)
 
         if let availableEpisode = fetchAvailableEpisodes(storyThemeId: selectedStoryTheme.uid) {
-            episodes![availableEpisode.count].isAvailable = true
-            try? modelContext?.save()
+            if EpisodeViewModel.shared.indexEpisodePlay == availableEpisode.count - 1 {
+                episodes![availableEpisode.count].isAvailable = true
+                try? modelContext?.save()
+            }
         }
     }
 
diff --git a/Moco/ViewModel/UserViewModel.swift b/Moco/ViewModel/UserViewModel.swift
index fb0b406..00d0c17 100644
--- a/Moco/ViewModel/UserViewModel.swift
+++ b/Moco/ViewModel/UserViewModel.swift
@@ -49,8 +49,10 @@ import SwiftData
 
     func addingAvailableEpisode() {
         if let userLogin = userLogin {
-            userLogin.availableEpisodeSum += 1
-            try? modelContext?.save()
+            if EpisodeViewModel.shared.indexEpisodePlay == userLogin.availableEpisodeSum - 1 {
+                userLogin.availableEpisodeSum += 1
+                try? modelContext?.save()
+            }
         }
     }