confused

who's chulsoo again? Im bad with names

if ure talking about the main omega lead then the prince was warned not to get close to him cause he's his fiance's lackey (and also conected to the pharmaceutical) however he wasn't able to do that cause he developed feelings for him

The prince noticed that "hanie" have some omega faint traits and assumed he was a fake created to substitute his "fiance" if he died since they've spread that he was sick since birth
He is almost right Hanie actually is indeed a experiment however since he was the only survivor he is the original fiance but even after surviving all the experiments some time passed and he didn't become a omega change in plans the lab director put one of his sons to pass as a omega and the prince wouldn't know since omegas who take their meds shouldn't be able to sense alphas and vice versa
Hanie was taken to the palace with the "fiance" so that he could keep taking the drugs to change himself into a omega the lab is trying to see if his close proximity to an alpha helps developing it
Prince feels that he needs to distance himself because the lab people is shady but he also cares for him and is falling for him