beta
Her brother hates her (no sweet home Alabama) but he's obsessed with her eyes so he's afraid she's going to escape solely for this reason. Why? Because they were both born with grey eyes but based on the empire's crown history, only the true, legitimate heir's eyes change to blue color. Everyone expected it'll be him but it was his sister instead. So yeah, while he's jealous and absolutely detests her (hence why he makes her suffer), he also doesn't want to lose the only proof of true, loyal blood. He's basically a blue blood extremist.