A Belobog mechanic who used to be a researcher for the Technology Division of the Architects.
As Gepard Landau's elder sister, her personality stands in stark contrast to her brother's.
She loves an ancient form of music known as “rock 'n' roll” that was popular before the Eternal Freeze.

The free and rebellious eldest daughter of the Landau family. Once a close friend of Cocolia's, she is now a mechanic purely because she likes this job.
In the Everwinter-stricken Belobog, she opened a workshop called “Neverwinter” that puts business on hold from time to time for outdoor rock 'n' roll performances.
And should anyone ask her about the workship's profits… “This is just a hobby, dear. I'm not short on money.”

This is the most talented mechanic in all of Belobog and rock star. Did we mention she's also the sister of Captain Gepard Landau of the Silvermane Guards?

“Stop. Stop that. Keep the first part, and leave out the second part.”
“I'd like you not to gloss over my identity like that… I, Serval Landau, am no one's accessory.”

“… Oh, there's nothing else afterward? Okay. Let me chip in then: If something's broken, drop into the Neverwinter Workshop in the Administrative District to see me, any time.”
“What's that, you wanna hear some rock'n'roll? Well, that's even better — drop into our Neverwinter Workshop in the Administrative District to rock this city — with Mechanical Fever!”