Kamase Inu no ōkan

Tarte is a boy who had everything from the moment he was born — wealth, power, and talent. As he was getting ready to test his mettle in the King's Selection Exam, commonly known as "the Regal Ceremony", which only one person can make the cut through, Figo, the son of a blacksmith whom he looked down on as "a fool", challenged him to a duel on the school's graduation day...?!