I think this is actually quite cute!
The summary for this manga on some sites may be off putting, but the male lead is not actually abusive in his teasing, and saying she's his slave is a little much. The female lead knows exactly what he's doing and does things she doesn't mind. The female lead is also a descendant of a ninja clan, which is a funny quirk in the story, and this quirk makes her quite capable in her work.
As of right now I've only read the three chapters, but I truly like what I've read so far. I'm looking forward to
reading the rest! I encourage you to give the story a try if the wording of the summary has kept you from reading it.