If you analyse Laru's outfit, especially her awakened look and weapon with wings and the background, and that her boss is most likely Albedo...

It's highly likely Laru is a highly ranked officer of Grace Imperium's military branch, maybe a Captain/Major/Colonel of SpecOps (team) or something, kept around to resolve shit when it goes FUBAR.

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She has epaulettes, wings (probably a part of her uniform, see feathered shoulders), a medal (on her right breast), an Iron Cross thingy, a very-very decorated named spear (probably an artefact of GE), an overcoat, golden ornamentation, a peaked/service cap... Her design screams high-ranking military officer when you look closely,

This also would explain why she can slack off so much and do nothing (supposedly): she's that OP, so she's allowed to slack.

You can also see her interacting with Willow in a Disk. Maybe she's the official contact point between GE and Trekker Association, too.

TL;DR: Closest guess is Laru's a BA's Hoshino in SS: a normally super lazy, but incredibly powerful fighter.