The story revolves around a first-year high school student, Teiichi Niiya who had just enrolled at Seikyou Private Academy. When he gets lost in one of the school's old building, he meets a girl named Yuuko Kanoe who reveals herself as a ghost with no memories. Teiichi then decides to investigate her death by delving deep into the infamous Seven Mysteries of the storied school along with Kirie Kanoe, Yuuko's relative, and the oblivious second year Momoe Okonogi. Throughout the story, Teiichi and Yuuko discover the truth about these ghost stories and help those who are troubled all the while inching closer to the truth behind Yuuko's death.
| Title | Time | |
|---|---|---|
| 1 | Ghost Maiden | 2012-04-09 |
| 2 | Maiden of a Chance Meeting | 2012-04-16 |
| 3 | Maiden of Dusk | 2012-04-23 |
| 4 | Maiden of Dawn | 2012-04-30 |
| 5 | Maiden of Longing | 2012-05-07 |
| 6 | Maiden of Vengeance | 2012-05-14 |
| 7 | Maiden of Oblivion | 2012-05-21 |
| 8 | The Maiden of Recollection | 2012-05-28 |
| 9 | Maiden of Hatred | 2012-06-04 |
| 10 | Maiden of Loss | 2012-06-11 |
| 11 | Maiden of Bitter Tears | 2012-06-18 |
| 12 | The Dusk Maiden | 2012-06-25 |
