One rainy day Nozomi Kasuga and her two friends encounter a strange boy at their high school, who sends them hurtling across time and space to a place in another world called Kyō. This place bears a strong resemblance to Kyoto at the end of the Heian period, where the Minamoto clan (Genji), led by Minamoto no Yoritomo (based on the historical Minamoto no Yoritomo), is at war with the Taira clan (Heike), led by Taira no Kiyomori (based on the historical Taira no Kiyomori). The Heike hope to defeat the Genji by releasing vengeful spirits to disturb the Earth's natural flow of energies and to terrorize the land. The boy that Nozomi met is revealed to be the human form of Hakuryū, the White Dragon God said to protect Kyō, whose powers have greatly weakened due to the presence of the onryō. Nozomi discovers that she has the power to seal the onryō as Hakuryū no Miko, and she allies herself with the Genji in order to seal the onryō, restore Hakuryū's powers, and return home to her own world. [From [url=http://en.wikipedia.org/wiki/Harukanaru_Toki_no_Naka_de_3]Wikipedia[/url]]

In the year 2020, the protagonist and her childhood friends prepare for their Christmas break. As they board an airplane to return to Japan, they are sucked into the parallel world. This world is experiencing the turbulent end of the Tokugawa shogunate in December 1863. Using a magical hourglass, she gains the unsteady power to travel to both worlds. Although she and her companions flicker in and out of the parallel world, her adventures within this world span a total of three years. Initially, the protagonist desires to save the suffering Four Gods from the parallel world's warring factions in order to save her mysteriously ravaged home world. As time passes, she learns that both worlds are being merged to create another world. Hoping to prevent the forceful deaths of two worlds, she willingly sacrifices fragments of her own life force to protect those dear to her. [from [url=http://koei.wikia.com/wiki/Harukanaru_Toki_no_Naka_de_5]Koei Wikia[/url]]