Ms. Lunenburg

"You're just in time! Now that you're back, how about we do some family shopping?"

'                                            -Ms. Lunenburg, talking to Taeko Luneburg'

Apparently, Ms. Lunenburg is the mother of Taeko Lunenburg and Rena Lunenburg.

Personality
As for a caring mother, she seems to have a generous personality and keep her kids monitored and maintained, such as going far to ensure their safety, she gives Taeko the privilage of bringing friends over so it wouldn't be considered her leaving her kids, "home alone".

Relationships
Knowing she's the daughter of both Taeko and Rena, she's closest to them, and the rest of the family, she's however had a few interactions with Mr. Torres, and Ms. Torres, Mirage and Leon's parents.

Appearance
Taeko took on the appearance of her mother, same black hair and tannish-skin, so did Rena.

Trivia

 * Ms. Lunenburg may have been friends with Mirage and Leon's parents.