◆ The ultimate hardcore SRPG in history!
The Disgaea SRPG series has sold over 5 million copies worldwide.
The fourth title in the series, Disgaea 4: A Promise Revisited, is now available for smartphones!
Grind all the way up to Level 9999! Deal over 100 million points of damage!
Enjoy the challenging game system and the exciting story that features unique characters!

◆ Story
Hades is a prison in the lowest depths of the Netherworld.
Here, the souls of sinners are processed and shipped out as the lowest of demons, Prinnies.
One day, Valvatorez, a vampire who now works as a Prinny Instructor, had his entire graduating class of Prinnies abducted.
After investigating, he discovers that they were abducted by the Corrupternment, the organization that controls the entire Netherworld.
In order to correct the tyranny of the Corrupternment, and more importantly, to fulfill his promise to give each Prinny one sardine, the vampire once feared as the Tyrant must take a stand!
Down with the Corrupternment! Seize the power! Reform the Netherworld!
The story of reformation in the Netherworld with Valvatorez, a vampire who no longer sucks blood, begins here!

◆Ranking Battles!
You can compete with other players through the weekly themes and quests.
Depending on your performance, you will get Ranking Points that can be exchanged for useful items!
Compete with other players and aim to be the best in the Netherworld!

◆Additional Features for the Smartphone Version
・Auto-Battle
Battle even while you're asleep! You can also set Auto-Battle on, not only for stages, but for the Item World as well.

・High-Speed Battles
You can adjust the battle speed from 1x to 8x!
When combined with Auto-Battle, you can level up at amazing speeds, without even touching your phone.

◆Cloud Save Support
Save data can be transferred, regardless of your phone or device.
You can enjoy the game on your smartphone while you're out, and on your tablet when you're at home.
[Important]: Please set up an ID and password to manage your backups.

◆Requirements and Recommended Devices
・Android 8.0 or higher (recommended: 4GB RAM or higher)
*Even if your device meets the recommendations, it may not work properly on some devices or tablets.
We would appreciate your understanding that we cannot provide support for some models, even if problems occur.

◆PS4 Controller Support (Partial)
You can use a PS4 controller to navigate the base, menus, and during combat (some optional menus, etc., are not supported).

// Option A //

To download 株式会社日本一ソフトウェア mod from HappyMod.com.
You need enable the option "Unknown Sources".
1. Click on the above link to download 株式会社日本一ソフトウェア mod APK.
2. Save the file in your device Downloads folder.
3. Now tap on Install and wait for the installation to finish.
4. Once it is done, open the game and start playing it right away.

// Option B //

To download 株式会社日本一ソフトウェア from HappyMod APP, you can follow this:
1. Open your browser and download the HappyMod APK file from HappyMod.com - the only official website of HappyMod.
2. Open Android Settings and go into Privacy or Security.
3. Tap the option to Allow Unknown Sources and enable it.
4. Go to your Android downloads and tap the APK file.
5. Follow the directions on the screen to install it.
6. Search 株式会社日本一ソフトウェア in HappyMod App.