An extremely ordinary girl in the 21st century. She has been as ordinary as a speck of dust since she was a child. No one cares about her. Her parents prefer her younger brother and often neglect her. Her classmates never take her seriously. And her ordinary appearance is not welcomed by boys. This developed her character of being withdrawn and reticent. Although her appearance became cold due to her need to protect herself, her inner world was extremely kind. Finally one day she could no longer bear the indifference brought to her by this familiar yet unfamiliar world. After a high fever, she fell into a long-term unconscious state. A miracle happened after that, the birthmark between her thighs shone red... She began an extraordinary journey to another world.