Aozora Aquarium---a secret place nestled in the city.
Mayumi Nakanobe and Himeno Tamagawa
investigate the urban legend whispered about back in middle school.
How much of the urban legend was based in truth?
Where water turns to blood, where the ghost of the dead curator swims---.
Where Mayu may reunite with her missing young sister---.
Where a trivial incident leads to strife between best friends---.
Where a choice may choice is made to part ways---.
Mayu and Hime confront the aquarium's many tragedies.
This summer, will you visit the aquarium too?