Crimson Climax / Ho Ta Ru Ko / Hotaruko

The story begins with the main character's mother disappearing, and the daughter does not manage to find her. Suddenly the girl receives a letter and a bouquet of red roses with a request to come to a deserted island.

Remembering her mother's prohibition to visit this place, the heroine decides to go there in the hope of finding her. However, she soon realizes that she has made the biggest mistake of her life, and it may be her last.