Is Rin: Daughters of Mnemosyne coming back?

Rin: Daughters of Mnemosyne ended on July 6, 2008, after its single season. The series concluded its run on AT-X, with all six episodes aired by that date.

Rin: Daughters of Mnemosyne was an anime series that first premiered on February 3, 2008. It was a horror, science-fiction, and supernatural show that followed Rin Asogi, an immortal private detective. Over the course of sixty-five years, Rin experienced a series of nightmarish events, including being violently pierced, blown up, and mutilated, all while trying to uncover the truth behind her endless suffering. The story involved her entanglement with Apos, an eternal being obsessed with sacrificing her to Yggdrasil, the tree of all life, and delved into themes of death, memory, and eternal torment.

The series featured voice performances by Mamiko Noto as Rin Asogi and Rie Kugimiya as Mimi. It had a runtime of 60 minutes per episode. Since the show has ended, there are no upcoming episodes or seasons scheduled.