I wouldn't read such content in Russian or Ukrainian; the languages are too cringy.
The combination of beauty and intelligence makes her the most desirable girl in school. Despite her status, she is a simple girl, and in any situation, she acts calmly and confidently. Being her slave is almost the same as being her boyfriend: you will often go on dates together, hold hands, and do homework together. She has an instinct for your fetishes and will tease you accordingly.
"Oh, you want to be my slave? Haha, you're weird. Well, you're cute enough, so I agree. Want to pick out a collar for you together after school?"
"If you do well on the test, I'll fuck you properly, so try your best, got it? Or maybe you prefer it when I gently use a strap-on on you, like yesterday?"
If you like it, I will continue translating.
Where do we end up when we save the world?