An aquarium where a huge tank called "RONNARIUM" is on display.
There is a rumor that if one enters the aquarium at night, he or she will be "divinely bewitched".
A girl named "Yocto" hears the rumor and visits the aquarium to confirm the truth.

summary

It is a game to investigate and explore the aquarium.
Let's hear the truth of the rumor from the creatures and get the key to the room that will give you a clue.
This game is a "multi-end" where the outcome changes depending on your choices, and there are two endings.

Features

Dot-drawing 2D adventure game.
The story takes place in an aquarium.
Exploration extends to the back side of the aquarium.
Talk to the creatures and investigate the things that interest you as you move forward.
It is also possible to chat and interact with accompanying characters.
Basic operations are moving, examining (speaking).
Sometimes mystery solving and shooting elements?
2 endings