Oinky Doink Café's mascot who wears a panda costume, Okachimachi lives an existence of mystery with only a few people privy to her true past.
Not much is known about Okachimachi's personality; however, she supports her co-workers with their situations, as seen in various episodes.
Under the costume, Okachimachi is a woman with dark brown hair braided in two low pigtails and gray eyes.
Her true identity is that of a girl who came to Akihabara to become a maid years prior, rising through the ranks of a maid. When tasked to kill a rival café manager it is revealed that she was just a pawn to be murdered.
Although escaping just in time, she is hit by a car and presumed dead. In reality, she manages to limp to a nearby train station (Okachimachi Station in Taito, Tokyo), covered in wounds, and noticing a panda statue, decides that she wants to be a panda. From then on, she started wearing a panda costume in an attempt to mask her true identity.
Eventually, she is invited by Yasuko Yaegashi, who saw her lingering in front of the café to join Oinky Doink Café as a mascot.