Ohime-sama Navigation (おひめさまナビゲーション Ohime-sama Nabigēshon?, lit. Princess Navigation), with the subtitles Otogibanashi Uranai (おとぎばなしうらない?, lit. Fairy tale divination) and Which Girl do you Trust?, is a reader-participation game in the Japanese bishōjo magazine Dengeki G's Magazine, published by ASCII Media Works, which started in the February 2008 issue sold on December 30, 2007. The project had been first announced in the two-hundredth issue of Dengeki G's Magazine released in the October 2007 issue, and the project itself is a form of commemoration for the achievement. Ohime-sama Navigation's premise is written by Satz, and the character design is by Naru Nanao, known for her artistry on D.C.: Da Capo by Circus and Ef: A Fairy Tale of the Two. by Minori. A manga adaptation entitled Hime Navi began serialization in the June 2008 issue of Dengeki G's Magazine illustrated by Raina, and a second manga using the original title was serialized in the same magazine between the November 2008 and June 2010 issues illustrated by Yūki Takami.
Ohime-sama Navigation revolves around three young girls enrolled at a fortune-telling school named Kaisen Academy. Each is learning different forms of fortune-telling at the school, though they are in the same class and have the same homeroom teacher — Mai Komura.
- Crystal Hoshikawa (星河 クリスタル Hoshikawa Kurisutaru?)
- Crystal is a girl dressed like a witch. She was born on February 10, and has O type blood, making her a "Little Red Riding Hood"-type princess.
- Hime Kaguyama (香久山 日冥 Kaguyama Hime?)
- Hime is a girl dressed like a miko. She was born on July 21, and has AB type blood, making her a "Princess Kaguya"-type princess.
- Kari Nano (菜野 花里 Nano Kari?)
- Kari is a girl dressed in a Southeast Asia style. She was born on May 4 and has A type blood, making her a "Snow Queen"-type princess.
- Mai Komura (米村 米 Komura Mai?)
- Mai is the homeroom teacher to Cystal, Hime, and Kari.
|A type blood||B type blood||O type blood||AB type blood|
|Aries||March 21—April 19||The Snow Queen||Little Red Riding Hood||The Little Mermaid||Cinderella|
|Taurus||April 20—May 20||The Snow Queen||Sleeping Beauty||The Crane's Requital of a Favor||Princess Kaguya|
|Gemini||May 21—June 21||The Snow Queen||Thumbelina||Sleeping Beauty||Princess Kaguya|
|Cancer||June 22—July 22||Snow White||Thumbelina||Princess Kaguya||Princess Kaguya|
|Leo||July 23—August 22||Snow White||The Little Mermaid||Thumbelina||Cinderella|
|Virgo||August 23—September 22||Snow White||Little Red Riding Hood||Princess Kaguya||Sleeping Beauty|
|Libra||September 23—October 23||Sleeping Beauty||The Crane's Requital of a Favor||Cinderella||The Crane's Requital of a Favor|
|Scorpius||October 24—November 21||The Crane's Requital of a Favor||Snow White||Cinderella||Sleeping Beauty|
|Sagittarius||November 22—December 21||The Crane's Requital of a Favor||The Little Mermaid||The Little Mermaid||The Snow Queen|
|Capricornus||December 22—January 19||Thumbelina||Little Red Riding Hood||Cinderella||The Snow Queen|
|Aquarius||January 20—February 18||Princess Kaguya||Little Red Riding Hood||Little Red Riding Hood||Cinderella|
|Pisces||February 20—March 20||Snow White||The Little Mermaid||The Little Mermaid||Thumbelina|
Ohime-sama Navigation is a reader-participation game that began in the February 2008 issue of ASCII Media Works' bishōjo magazine Dengeki G's Magazine sold on December 30, 2007. Originally, the readers were given three heroines—Crystal Hoshikawa, Hime Kaguyama, and Kari Nano—and the readers were able to vote on their birth dates and blood types which would determine their "princess type" which corresponds to princess in fairy tales. The main part of the game is for the readers to give advice to the three heroines as they attend the fortune-telling school.
A manga adaptation entitled Hime Navi (ひめナビ Hime Nabi?) began serialization in ASCII Media Works' Dengeki G's Magazine in the June 2008 issue and is illustrated by Raina. Starting with chapter fourteen released in the July 2009 issue, the title changed to Hime Navi Evolution (ひめナビevolution?). The first volume of Hime Navi containing the first thirteen chapters was released on June 27, 2009 under ASCII Media Works' Dengeki Comics imprint. A second manga, entitled Ohime-sama Navigation, was serialized in the same magazine between the November 2008 and June 2010 issues and is illustrated by Yūki Takami. The first volume of Ohime-sama Navigation was released on June 27, 2009 under Dengeki Comics, and the second followed on January 27, 2010.
- Official website (Japanese)