♀ f 15

Likes: ice-cream, reading books Dislikes: spice food, studying, presentations The heroine of this game. She is called "Mayu" by Himeno. Although she is shy and reluctant to open up, she's actually quite honest. She prefers spending time indoors. To this day, Mayu is haunted by memories of Mari, the... read more

Likes: ice-cream, reading books Dislikes: spice food, studying, presentations The heroine of this game. She is called "Mayu" by Himeno. Although she is shy and reluctant to open up, she's actually quite honest. She prefers spending time indoors. To this day, Mayu is haunted by memories of Mari, the sister that she suddenly lost.

♂ m 22

Likes: baseball, children Dislikes: drinking alcohol, games He works in the Manten East building as a part time worker. He's still well-muscled from his history of sports. Kenji is a bit of a playboy, and came up to Mayu when she was alone in Manten Aquarium.

♀ f 15

Likes: strawberries, cakes, music Dislikes: green tea, sports, home Miku seems to be involved with Sayo. She likes cute clothes and is always quiet. She speaks with a Kyoto dialect, but she isn't from Kyoto. She has family problems, so she usually goes to the live-music house to heal her mind throu... read more

Likes: strawberries, cakes, music Dislikes: green tea, sports, home Miku seems to be involved with Sayo. She likes cute clothes and is always quiet. She speaks with a Kyoto dialect, but she isn't from Kyoto. She has family problems, so she usually goes to the live-music house to heal her mind through listening to music.

♀ f 10

Likes: playing, her sister Dislikes: homework, bitter things Mari is Mayu's sister, and is quite fond of her. Though Mari and Mayu have opposite personalities, they're both stubborn. She disappeared at Manten Aquarium 5 years ago. She suddenly appeared in front of Mayu, but she looked the same as 5... read more

Likes: playing, her sister Dislikes: homework, bitter things Mari is Mayu's sister, and is quite fond of her. Though Mari and Mayu have opposite personalities, they're both stubborn. She disappeared at Manten Aquarium 5 years ago. She suddenly appeared in front of Mayu, but she looked the same as 5 years ago.

♀ f 29

Likes: the Aquarium, qualifications, research Dislike: sweets, old-fashioned thinking Rieko is Aquarium staff. She has a good figure like a model, but her makeup and hair style make her look rigid. She is quite familiar with not only biology, but also management and marketing.

♂ m

♀ f 15

Likes: lemon, soda water Dislikes: strangers, cigarettes, what she can't perceive A mysterious girl, who met Mayu in Manten Aquarium. She is so suspicious of strangers that she is always seen with angry face. She has a strange fate with Manten Aquarium.

♀ f 15

Likes: fashion, urban legends Dislikes: school regulations, bullying Mayu's classmate and best friend. An outdoors person with a good sense of fashion. As part of the sports club, Himeno likes to play, but she does not seem very excited about being part of the club. She heard the rumors about Mante... read more

Likes: fashion, urban legends Dislikes: school regulations, bullying Mayu's classmate and best friend. An outdoors person with a good sense of fashion. As part of the sports club, Himeno likes to play, but she does not seem very excited about being part of the club. She heard the rumors about Manten Aquarium and asked Mayu to investigate with her.