Asura Cryin’

Natsume Tomoharu is a normal high-school student in every way with one exception: he’s being followed by the ghost of his best friend, Misao.
After moving into his brother’s old house, Tomoharu expects to continue living his normal life but is one day left with a mysterious and locked briefcase without any instruction. At first he plans to leave it in storage; however, his house is soon invaded by multiple groups of people after the briefcase. Although still not knowing the purpose of the briefcase, Tomoharu and Misao attempt to escape with it.
From there on, Tomoharu tries to learn the secrets behind the briefcase, the connections between it and Misao, and why it has the power to change the world.

Three years after an accident that nearly left him for dead, Tomoharu Natsume is about to start his high school life. Though with a ghost named Misao following him around, Tomoharu is far from being an average teenager. One day a strange woman appears and gives him a trunk that contains a tremendous power. This power is known as an Asura Machina – a being that draws its strength from a human sacrifice – and the sacrifice within Tomoharu’s Asura is none other than Misao. As the bearer of such a power, Tomoharu immediately becomes the target of various groups, including the Divine Guards, who want his power for their own. When Tomoharu befriends a demon called Kanade and she is captured by the Divine Guards, he joins the Dark Society in order to save her. Now, Tomoharu will have to fight alongside the Dark Society while he tries to find a way to save Misao and bring her back to life.