Can someone give me spoilere If her and the Male lead are related ?

Ahem spoiler alert
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Soooooo she and the ml is not related but, BuT there will be a big plot twist in the future involve our mc and ml and mc brother rezef is his name right idk and it also involve the mc mother the queen? Or empress and ml father.

Ok tbh they were having an affair
And have a baby

I just wanna know is the ml the black haired one

Yes

Yeah

(≧∀≦)I am excited to see her younger brother

if the mc's mother had a baby with the ml's father wouldnt that make them kind of like step siblings , they wouldnt be blood related but i think it would still be related, and is the baby rezef ?