kawazaki's manga / #confinement(3)

A rich family collapses, the butler makes it big and buys back the mansion. After which the young master returns to the mansion and is held there against his will by the butler

A young japanese man is sold off into the royal family as a slave due to his crippling deb. However he is bought by a kind prince, who helps him overcome his addiction that the japanese man didn't know he had. ( thought he was taking sea sickness pills)