- Tom Sawyer of Virgo (constellation series) cobalt (Novel) ISBN: 4086115751 (1991) [Japanese Import]
- Love situation of Leo (constellation series) (Shueisha Paperback - cobalt series) ISBN: 4086114526 (1990) [Japanese Import]
- Detective game of Libra (constellation series) (cobalt Novel) ISBN: 4086115298 (1991) [Japanese Import]
-
Don Quixote after school
(after school series) (cobalt Novel) ISBN: 4086115565 (1991) [Japanese Import] - Genius legend of Aquarius (constellation series) cobalt (Novel) ISBN: 4086116162 (1992) [Japanese Import]
![Hackle Beryi Finn after-school (after school series) (Shueisha Paperback - cobalt series) ISBN: 4086113120 (1989) [Japanese Import] 4086113120 Book Cover](https://m.media-amazon.com/images/I/51jl5D9ZenL._SL200_.jpg)
![Tom Sawyer of Virgo (constellation series) cobalt (Novel) ISBN: 4086115751 (1991) [Japanese Import] 4086115751 Book Cover](https://m.media-amazon.com/images/I/51+XfoqiszL._SL200_.jpg)
![Love situation of Leo (constellation series) (Shueisha Paperback - cobalt series) ISBN: 4086114526 (1990) [Japanese Import] 4086114526 Book Cover](https://m.media-amazon.com/images/I/51Go44RGT-L._SL200_.jpg)
![Detective game of Libra (constellation series) (cobalt Novel) ISBN: 4086115298 (1991) [Japanese Import] 4086115298 Book Cover](https://m.media-amazon.com/images/I/51xqlnPkl-L._SL200_.jpg)
![Don Quixote after school <campus Hen> (after school series) (cobalt Novel) ISBN: 4086115565 (1991) [Japanese Import] 4086115565 Book Cover](https://m.media-amazon.com/images/I/51YSSSgH9EL._SL200_.jpg)
![Genius legend of Aquarius (constellation series) cobalt (Novel) ISBN: 4086116162 (1992) [Japanese Import] 4086116162 Book Cover](https://m.media-amazon.com/images/I/51aS2CEa2RL._SL200_.jpg)
![Love equation of Sagittarius (constellation series) (cobalt Novel) ISBN: 4086116006 (1992) [Japanese Import] 4086116006 Book Cover](https://m.media-amazon.com/images/I/51qxC046+mL._SL200_.jpg)
