This game is rated ages 15+ This game is intended for ages 15+ "Easily surpassing its excellent predecessor, Akai Ito, Aoishiro is my favorite visual novel (if not video game) of all-time."
"Aoishiro earns its status as a “girls’ love” visual novel. It has blood sucking vampire-like, even with actual kisses on screen. If you are also into Japanese mythology and similar subjects or shoujo ai genre that doesn’t have mature scene, this visual novel will appeal to you. In fact, I would say don’t miss it."
"It is the game equivalent of fireworks. A few beautiful explosions that leave your jaw hanging open, you just wish that there was one more or that they lasted just a bit longer"
The Seijou Girls’ Academy Kendo Club is traveling to Shoushinji for a Summer training camp. Near there is an island, Urashima, where legend has it a demon extermination took place long ago.
They arrive around the time of a festival which honors a god that is worshipped by the people of Urashima; it celebrates the onitaiji and ensure another year of health for the people. Around the time of the festival, the weather around Urashima worsens and storms will come.
A few days into their training, Osanai Shouko finds a girl washed up on the shores near the location of the training camp. She cannot speak and doesn’t seem to know much about herself...
(From VNDB)