The main character Dust is a serious upright citizen who meets the Virtuous Heroine and is thrown into an evil plot. The two of them will grow closer and their relationship will be put to the test. Along their journey against evil are their various friends who will support them and surely won't be a hindrance to their relationship.
Dia is the series' main heroine. She can transform into the superheroine Dream Diamond and has a headstrong and kind of rude personality. She has a drive to fight against evil and will protect the innocent. In this story she will learn to understand love and justice with Dust, but she is also susceptible to evil...