Goodbye, Diamond.

With one year to live, three ladies turn their lives around! Ran, who was on the softball team at an all-girls school, lost both her dreams and her man. Then it turns out that her former teammate and best friend Homura has only one year left to live. As it turns out, none of the three good friends from the team, including Kay, had realized their dreams. So they decide to live together, quit their jobs, and open a detective agency in Asakusa, all to at least make Homura's dream come true. Homura may have lost her job, her man, and her dreams, but she still has her friends! Will they make it? (Source: Big Comics, translated)