Nai Training Diary APK

Nai Training Diary APK Final Download Free

App By:
Playmeow
Version:
Final for Android
Updated On:
Jul 30, 2026
Size:
344.2 MB
Required Android:
Android 5.0+
Category:
Action
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Table of Contents (Show)

Nai Training Diary APK is a story-based visual novel and life-simulation game focused on the character Nai. The game follows Nai over a period of 100 days, where the player interacts with her, makes different choices, and helps shape the direction of her story.

The game combines visual-novel storytelling with simulation and decision-making elements. Your daily actions can influence Nai's mood, relationships, skills, and the way the story develops. It also includes multiple story outcomes, giving players a reason to replay the game and try different choices.

Note: Nai's Training Diary is an 18+ adult-rated game and may contain mature themes and content.

What is Nai Training Diary APK

Nai Training Diary is a visual novel with simulation and character-development elements. The original game was released in 2020 and was developed by Banana King. The game is known for its choice-based story and multiple endings.

The main story takes place over 100 days. During this time, players can talk with Nai, choose different activities, explore locations, and make decisions that can affect her development and the story.

Instead of focusing on fighting or traditional action gameplay, the game mainly focuses on story, interaction, management, and player choices.

Gameplay

The gameplay of Nai Training Diary is relatively simple but gives players several choices.

At the beginning, Nai is shy and has difficulty trusting people. As the game progresses, players interact with her regularly and make decisions about how she spends her time.

Some gameplay elements include:

  • Daily conversations with Nai
  • Making choices that influence the story
  • Managing different aspects of Nai's development
  • Exploring different locations
  • Taking part in activities
  • Improving relationships and character statistics
  • Discovering different events
  • Unlocking different story outcomes

The game has a relatively open structure, allowing players to choose different activities rather than following only one fixed path. Sources describe more than 11 locations and over 50 events in the original game.

Features of Nai Training Diary

1. Story-Based Gameplay

The biggest feature of the game is its story. Players experience Nai's journey through conversations, events, and different decisions.

2. Multiple Endings

Your decisions can change the direction of the story. This means players can discover different endings by making different choices during separate playthroughs.

3. 100-Day Journey

The game is designed around a 100-day journey with Nai. Players gradually see changes in the character and story as the days progress.

4. Character Development

Nai's mood, relationships, knowledge, and other aspects of her development can change depending on the player's actions.

5. Different Locations and Events

The game provides different places to explore and random or story-related events. These help make each playthrough more interesting.

6. Anime-Style Visuals

Nai Training Diary uses an anime-inspired visual style with character expressions and illustrated scenes that support the story.

7. Replay Value

Because the game has different choices and endings, players can replay it to see alternative outcomes.

What's New in the Latest Version

Information about the latest APK version is inconsistent across third-party APK websites. For example, some listings identify the game as version 1.0, while another listing shows version 1.0.6 for a related Android listing.

Because these versions are not consistently documented by an official developer source, it is better not to assume that a particular APK number is the official latest release.

Depending on the APK build, newer or modified releases may include things such as:

  • Improved compatibility with Android devices
  • Bug fixes
  • Performance improvements
  • Updated translations
  • Additional visual or gameplay content

Always check the version number, file size, developer information, and source before installing an APK.

How to Download and Install Nai Training Diary APK

Since APK files from third-party websites are not necessarily official, download carefully and use a trusted source whenever possible.

Step 1: Find a Reliable Source

Search for the official or legitimate distribution page for Nai Training Diary. Avoid websites that force multiple redirects or ask you to install unknown applications.

Step 2: Download the APK

Download the APK file that matches your Android device. Check the file size and version before starting the installation.

Step 3: Allow APK Installation

If Android blocks the installation, you may need to allow installation from the browser or file manager you used to download the APK.

On newer Android versions, this permission is normally found under Settings → Apps → Special app access → Install unknown apps.

Step 4: Install the Game

Open the downloaded APK file and tap Install. Wait for the installation process to finish.

Step 5: Open and Play

After installation, open Nai Training Diary and follow the instructions shown on the screen.

Safety tip: Do not install an APK if Android or your security software reports that it is dangerous. APK files from unofficial sources can potentially contain unwanted or malicious software.

Conclusion

Nai Training Diary APK is a story-driven visual novel and simulation game that focuses on character interaction, choices, development, and multiple story outcomes. Its 100-day structure and different events give players plenty of opportunities to experience the story in different ways.

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