Harukanaru Toki no Naka de 4

In Harukanaru Toki no Naka de 4, follows Chihiro Ashihara, one of two princesses of a kingdom locatrd in a land called Nakatsu Kuni within the parallel world. During her childhood, the kingdom was invaded by forces led by the king of Tokoyo no Kuni, a distant rival land connected to her kingdom. As Nakatsu Kuni is quickly overwhelmed, a divine power sends the protagonist through space-time to the modern world, protecting her from her kingdom's slaughter and ruin. Five years have passed since the massacre and the protagonist has suppressed her memories of her true origins. She believes she has been raised in the modern world and enjoys her peaceful life as an average high school student. Yet a mysterious encounter she has after school soon forces her to remember her true past and birthright. Returning to her home world, the protagonist is determined to save her people and resurrect her dying kingdom.

The heroine Ashihara Chihiro is a normal high school girl until one day a mysterious man informed her that she is a princess from Toyoashira. Following this alarming piece of news, a battle with a monster ensues where she discovers her powers as well as that of her teacher and best friend. More discoveries about her past and her fallen country are made when she wakes up in the world she fled from when she was a child. After battles against monsters she realized her role in this calamity as "Ryuujin no Miko" and that to revive her country, she has to go to war with the enemy nation that has invaded hers in the first place. During her adventures, she met up with a number of charismatic men, starting with her teacher and her best friend. But as a princess, falling for these men is prohibited. Together with the troubles that romance brings, Chihiro has to face the final battle with her bow and arrow as her only true ally.