As the inheritor of his father's prosperous enterprise, Ryuunosuke secludes himself as a result of previous traumatic experiences. His father eventually returns with the intention of training him for his upcoming ownership of the business. However, Ryuunosuke learns of a stipulation that he must engage in romantic relationships with ten potential candidates, one of whom will become his spouse. Although each woman has her reasons for vying for the position, one will be eliminated every week. The anticipation builds as the final decision approaches.