riko is a teen girl and she's in her secondary year of junior high and she is also an outspoken and feisty young woman and she's also the star plasma vessel and she liked spending time with her friends at school and currently she was told that someone will pick her from school to escort her everywhere and she doesn't know who it is yet and also her caretaker named misato kuroi will be with her at all times even when this mysterious person will pick her up soon and this story is sad and tragic