Ai Hime - Ai to Himegoto

They met. They kissed. They parted without a word. The next day, he turns up at dinner with her parents... And he's her father's stepbrother! Seven years her senior, and her uncle by marriage alone, he has been trusted with the duty of living with her as an "uncle" while her parents are working overseas for two years. Even though they're not blood-related, can Mao decide to love him and go through the struggles to be in love with him?