Orie Takarada, commonly called Rikka's Mother, runs Junk Shop Aya, a secondhand store central to her city's events. She lives there with her daughter Rikka. Her story begins when she and Rikka find Yuta Hibiki unconscious near their shop, bringing him inside to recover. This act draws the Gridman Alliance members and other associates to her store frequently, due to the "Junk" computer housed there. Standing 169 cm tall and born November 6, 1975, she has short brown hair and slightly downward-slanting orange eyes. A distinctive eyeball-shaped earring adorns her left ear, a nod to Midori from *Space Patrol Luluco* referencing their shared voice actress. She typically wears a white short-sleeved shirt, a long apron patterned like the abdomen of the original Megatron from *Transformers*, blue pants, and white shoes, often with a pen clipped to her apron. Her personality blends laid-back expressiveness with maternal concern. She nags Rikka, like instructing her not to enter through the front door, yet shows kindness by inviting allies such as Samurai Calibur to share meals, reflecting a nurturing disposition extending beyond her family. Like most city residents, her memories reset after each kaiju attack orchestrated by Akane Shinjo and Alexis Kerib, causing her to forget Gridman's battles and related events the next day. This cyclical amnesia underscores her existence within a constructed reality. Background details confirm she is not a native creation of the computer-generated world Tsutsujidai, unlike entities such as Alexis. Her design incorporates tributes: the Megatron-inspired apron motif and the Midori-referencing earring. Across official media, including the *Gridman Universe* film and spin-offs like *SSSS.Dynazenon*, she maintains a consistent, peripheral role. No significant narrative developments or expanded backstory occur beyond her original series presence. An unseen husband and son are mentioned indirectly through secondary sources.