From MangaHelpers: In a ruined city, Takeru comes across a suicidal young girl named Konoha. She's deathless, and she's being used as a guinea pig by a cruel organization. Seeing no meaning to her life, she fled her captors to seek a way to end it. Takeru has a lot in common with Konoha-- he's also deathless. He's made a life for himself, though, locating people by contract. After he rescues her from her pursuers, he convinces her to continue living. Maybe she'll be able to find a purpose, as she and Takeru face the future together. [tethysdust]

Naruyuki Touya, young student, arrives at Amagiri Gakuen, his new highschool. He finds himself on the quay of the station faced to a robot out of control and is attacked by a girl and then a classmate. Who are they? How come the girl knows his father? And what is the connection with him and this highschool?

Enter Misaki, perhaps the most innocent and most sincere young lady there ever was. It’s almost inconceivable that she could be a vampire. And with her powers as a vampire, she could easily entice any human to do her bidding... but she chooses not to. Especially when it comes to Kuroe, a young author who has a deep running past with vampires. This wonderful story of pure innocent love charmingly bonds Misaki to the readers. She’ll absolutely delight you with her earnest love for a human and her resolve to protect a willing mutual relationship versus turning Kuroe. The manga is based on a set of doujinshi released by the same mangaka. Many of the story arcs in the manga are based partially or wholly upon the doujinshi.