Is Daisy currently the only non-random servant we can own?

Is it possible to get Aire for example?

We definitely need to get Princess *drools* but not in exchange for our most precious servant *cringes* In strive 1 I took a beastkin wolf slave early in the game, nicknamed her Disposable Sacrificial Slave and then later gave her amnesia elixir to really name her that, fucked her everyday, and brought with me to every single battle so that I could exchange her for Melissa, but it still did sting when I clicked that button...