Manga by author Tanaka Yutaka

Though his name may mean good luck, Daikichi is far from lucky. Losing his home and his job, he narrowly avoids being homeless when he finds an old abandoned apartment building. But the apartment isn't nearly as abandoned as it first appeared, as it's being occupied by the ghost of a girl who committed suicide there many years prior. An ecchi romantic comedy from Tanaka Yutaka, mangaka of Ai-Ren.--from Solaris-SVU

Taken from Solaris-svu:Ikuru is a boy who doesn't have long to live. Grown up question the purpose of his life and the reason for his death, he's grown up constantly confused and lonely. Now, learning that he hasn't long to live, he requests that a special "girl" called a AGH-RMS be given to him. These people are genetically made so that they help heal and ease the mental burdens of someone who hasn't long to live. This manga is cute, sad and ultimately a story about life , death and humanity.