Sono Toki Heart wa Nusumareta

Life is good as the son of an aristocrat. All the money and free time offers everything one could want: elegant accommodations, fine clothing, sumptuous food and drink, smashing parties and as many sexual partners as you can count. But for one particular upper-crust snob, priorities are about to change. When a forthright and noble thief comes a-calling, he leaves behind an irresistible air of mystery. Could it be he's truly the thief of hearts, who wears a mask to hide his desires?