Million Dollar Romance summary:

"Will this make you happy?" Namwoo wakes up one night to find bills sprawled all over his room - along with the hazy memory of a handsome stranger. Even in his wildest dreams, all Namwoo wants is to have enough money to survive each month. Si-eon, on the other hand, has everything he could ever want except happiness. Intrigued by Namwoo's humble wishes, Si-eon offers him the money he wants - the catch being, he has to date him.+