Mimi

Rin's assistant. It is hinted throughout the series that they also have a more intimate relationship, though in episode four she appears to have grown close to the informant who was introduced in episode 3.

She is an immortal as well, and appears to have a bright personality. She is fond of alcoholic drinks despite looking like a teenager.

Her job scope includes financial management, information processing, and other miscellaneous tasks.

She cares for Rin very much and would do anything to ensure her safety, even while nagging her to do the job properly.

She is a formidable hacker, but