After losing his parents in a car accident, Teppei Arima is taken in by his wealthy grandfather and introduced to a life of luxury. The stark contrast from his modest upbringing leaves the teenage boy stunned. Grateful for his grandfather's generosity, Teppei agrees to take over the family business and enrolls in a prestigious high school to prepare for his future role. He is also informed of his arranged marriage to Sylvia van Hossen, a fellow member of the affluent class. With newfound fame and riches, Teppei embarks on a thrilling journey into his new life.