Yuki wa Jigoku ni Ochiru no Ka

Yuki wa Jigoku ni Ochiru no Ka (ユキは地獄に堕ちるのか, literally meaning Does Yuki Fall to Hell?) is a Fantasy Romance Shoujo manga series by Hiro Fujiwara. It was serialized by LaLa.

Summary
The "military history story concerning boys and girls" revolves around Yuki, a girl who has lived in the rural area of Kyoto with her six childhood friends who all share a secret that they cannot tell anyone. On her 16th birthday, Yuki's fate begins to change. (Source:ANN)

Volumes

 * Volume 1
 * Volume 2
 * Volume 3
 * Volume 4
 * Volume 5
 * Volume 6
 * Volume 7

Characters

 * Yuki Narutaki
 * Takaya Toribeno
 * Akira Mibu
 * Manato Katsura
 * Kureha Ninose
 * Haruka Tokiwa

Trivia

 * This is Hiro Fujiwara's second series. Her first series is Kaichou wa Maid-Sama!, which it is already ended last 2013 and has an anime adaptation.