リバースブルー×リバースエンド

A bold new RPG collaboration between Happy Elements and Grimoire has arrived—unlike anything you’ve seen before. In a world teetering between destruction and salvation, you step into the role of a being who defies both gods and humanity: the Demon King.

This is not just another fantasy tale—it's a story about rebellion, identity, and rewriting fate. Welcome to Reverse Blue x Reverse End, an RPG where you don't fight for glory or justice, but simply because it’s what you choose to do.

A World Reborn Nine Times

Set in the 9th Orbital History of Humanity—a timeline where mankind has faced extinction eight times and survived—the war between gods and humans rages on. The immortal youths known as “Knights” were created to resist divine rule, yet peace remains elusive. Now, as the gods plot to erase humanity from existence entirely, one figure rises above all others: you, the Emperor, an extraordinary Demon King destined to change the course of history.

Fight as the Demon King

In this world, there are no heroes—only those who defy destiny. You are the Demon King, leading a cast of unique and unforgettable characters known as the Knights. Each one embraces their own darkness, their own twisted sense of justice, and their own way of fighting back.

• Shout your special moves: Feel the thrill as you scream out powerful technique names mid-battle.
• Dynamic combat: Experience exhilarating line-defense battles filled with action and intensity.
• Stylish visuals: Enjoy vibrant text effects, detailed SD-style character animations, and expressive voiceovers.

A Unique Artistic Vision

The world of Reverse Blue x Reverse End blends dry realism with deep emotional resonance. With its striking visual style reminiscent of summer skies and silent conversations under fading sunlight, the game delivers a cool and atmospheric experience that lingers long after you play.

Whether you prefer bittersweet endings or melancholic tones, the aesthetic of Riba x Riba will pull you into its world—one where beauty and despair walk hand in hand.

Meet the Demon Kings

Each Knight you meet is more than just a companion—they’re fellow Demon Kings, each with their own quirks, styles, and backstories. From mischievous tricksters to stoic warriors, every character brings something fresh to the table:

• Cute and charming
• Cool and composed
• Strong and silent
• Playful and chaotic
• Spoiled yet brilliant

They may be demons, but they're also individuals you’ll come to know, trust, and fight alongside.

Dive Into the Lore

If you love complex narratives and intricate world-building, you'll feel right at home. Riba x Riba is packed with rich lore, hidden truths, and layered storytelling. While some secrets are meant to stay buried, rest assured—you can always refer to the in-game glossary and setting guide to uncover the deeper meaning behind every mystery.

System Requirements

To fully experience the world of Reverse Blue x Reverse End, ensure your device meets the following requirements:

• Android: Version 9.0 or later
• Graphics: OpenGL ES3 or higher
• RAM: 6GB or more
• Processor: Snapdragon 855 or equivalent

Note: Rooted or illegally modified devices are not supported.

Join the ranks of the Demon Kings. Take up arms not for good or evil—but for yourself, your will, and your truth. Because in this world, you decide what comes next.