Fecha de lanzamiento prevista: 2026

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Ten years ago, a mysterious giant labyrinth suddenly appeared on the surface of the world. It stretched endlessly into the depths, filled with ancient ruins and terrifying monsters. Adventurers from every land flocked to explore it, chasing fame and fortune in this new age of glory.

But for you, the labyrinth known as the “Abyss” is not just an adventure. It is your only hope.

Your beloved sister, Mio, suffers from a rare illness that no doctor can cure. The only clue to saving her lies somewhere deep within the Abyss. Every day, you descend alone into its dark dungeons, risking your life for her sake while she waits patiently at home.

As the days pass, the Abyss only grows more dangerous.

Will you find the cure before it is too late, or will the depths claim you first?

This is primarily a sister life-sim. Spend time with Mio at home: chatting, watching anime, cooking, and sharing the small joys of daily life, with fully animated and voiced scenes. Your care choices shape her mood and unlock new absolutely wholesome events!

When it is time to pursue the cure, head into the Abyss for focused roguelite runs. Battle monsters, learn skills, gather loot, and push a little deeper before returning home. Each outing supports your simple life together, and each evening brings you closer to the cure Mio needs.

Life with your Sister

After adventuring, return home to enjoy simple life downtime. Whip up meals with gathered ingredients, share adventure tales, play games, or snooze side by side! As you get closer, unlock more interactions!

Animations

Enjoy a wide range of expressive and beautifully crafted animations of your everyday activities with Mio.

Voice Acting

Every line spoken by Mio is fully voiced.

Roguelike! Open World!

Each dungeon dive shakes things up with slightly different terrains, enemies, and treasures, ensuring endless replayability and challenges. Learn and adapt with each exploration to uncover deeper dungeon secrets.

ACT (Armed Combat & Tactics) Real-Time Combat

Ditching turn-based for real-time combat with keyboard and mouse, this game lets you mix skills and gear for a fresh fighting feel. Each dungeon level throws unique challenges your way, demanding tactical skill use and strategy to advance. Dive deeper, and you'll unlock new abilities and gear to beef up your battle prowess."