Satsuki Kakeru lost his sister by suicide and has been living a dull life ever since then. One day, he is transported into a bizarre world "Red Night" along with his friend Minase Yuka. In order to survive and escape from Red Night, he fights against Dark Spirits (Ralva) and Black Nights.
Daisuke Ono
Ayano Niina
Chiaki Takahashi
Mai Gotou
Emiko Hagiwara
Noriko Rikimaru
Yuu Asakawa
Yokote Kumiko
Kaori Mizuhashi
Oma Ichimura
Showtaro Morikubo
Kouta Nemoto
Yoji Ueda