Responses
I think it's this one
https://www.mangago.me/read-manga/fake_romance/
Not really
It is historical
The adopted one was suppose to sleep with the servant after the drug but he end up sleeping with the real son his brother
There is the man ga am reading before it disappeared from my history
It is about two man ,one of them is the real son but the other was adopted saying he is his friend son
The father like the other one more than his real son .one day the real son decided to drive the adopted one but after drugging him the plan backfire cos he end up sleeping with him