![](https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2473710/extras/Story.png?t=1716817087)
Yuhee is an ordinary girl who attends a private school.
While waiting for her school bus, she picked up a bright purple conch shell on the beach.
She fell asleep on the bus due to unbearable drowsiness. What unfolded in front of her when she woke up was a school that had sunk into the deep sea and an abyss of followers following the high priest.
She solves puzzles prepared by Abyss Followers, avoids terrible monsters, and begins a journey to escape this Abyss School and return to her original world.
![](https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2473710/extras/How_to_Play.png?t=1716817087)
Solve hidden items and puzzles
while avoiding abyss zombies and traps at school.
![](https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2473710/extras/Game_Features.png?t=1716817087)
▷ Charming characters
▷ Tense gameplay
▷ Simple controls
▷ Various skins and cutscenes unlocked as you play