She is introduced in episode 3 as an assistant of sorts to the Female Informant from Episode 2.    Much like her predecessor, she demands sex with either Rin or Mimi for information.    Although, her first encounter with Mimi was less than romantic, by episode 4, they appear to have entered into some sort of relationship.    After episode 4, she has apparently died.

Rin Asogi is an immortal private detective with a thirst for vodka and a talent for attracting things that go bump in the night. In a series of nightmarish vignettes spanning sixty-five years, Rin's lush body is sadistically pierced, blown up, and mulched to a bloody pulp. The fiend behind her tortured existence is Apos, an eternal being obsessed with sacrificing Rin to Yggdrasil, the tree of all life. While Rin struggles to unravel the secrets of her endless agony, Apos lurks in the shadows, eager to tear into her ripe body and devour the memories of her countless lives. Rin's no stranger to the realm of the dead, but her next visit could last forever. <br><br>
(Source: FUNimation)

Hosts "That Anime Show" with J. Michael Tatum

Husband, Stephen Hoff, also works for FUNimation Entertainment

Female Informant 2