He's a Vampire

Christopher is a billionaire, he leads a life of luxury and desires that can be given just by saying it, however, he hides a secret from his family; He is addicted to gambling, in the evenings when he has free time, instead of going to a party with his friends, he prefers to go betting lucky in a new casino that has opened in the city. At first, things were going well for him, he managed to win the bets, but soon, luck stopped being on his side, and the casino owner wanted him to pay his debt, therefore, Christopher only has 2 options; pay a multi-million dollar sum of money to the casino owner to pay off his debt, or dare to sell her sister's virginity to the casino owner who covets her.