※All characters appearing in this game are 18 years of age or older.
In an era where a mysterious lifeform known as “Saima” has appeared, threatening the survival of humanity.
Unit No.41, a somewhat unreliable organic android named Aishou Yoi, warps to another world in search of “Hebdomas,” a substance capable of erasing the Saima.
However, in the world she arrives in, humanity has already perished. With communication to her operator cut off, Yoi is left completely on her own.
After being contacted by an AI left behind in that world and asked to uncover the reason for its destruction, Yoi sets out on a journey to trace the memories that remain.
◆Characters
Name: No.41 (Nickname: Yoi)
Race: Organic Android
The main protagonist of this story.
Though a defective and somewhat clumsy android, she works tirelessly for the survival of humanity.
She is also equipped with the ability to fight the “Saima,” using skills based on her voice and singing to deal damage to enemies in battle.
BBB (Three-B)
A mysterious demon dressed as a maid.
She is incredibly strong and proud, yet a little shy.
She is also the mentor who taught Yoi how to fight.
◆How to Play
Guided by a mysterious AI, pass through gates to enter mini-dungeons.
A variety of maps appear, including cave-like dungeons, fantasy dungeons such as demon lord castles, and near-future sci-fi settings. In addition to battling enemies, you can also explore towns at your warp destinations and interact with people to progress the story.
Battles use a symbol encounter system and feature simple turn-based combat.
Leveling up allows you to acquire skills that make battles easier, but in this game, defeating enemies does not grant experience points.
To level up, you need an item called the “Book of Trials,” which can be obtained from treasure chests in dungeons or by defeating bosses, so be sure to explore every corner of each dungeon.
Lose a battle and Yoi will be attacked—and end up in a lewd predicament...
Tentacles, hypnosis, and all kinds of trouble await her...!
Some defeat scenes feature animation!