the world and met different women. This was how he had the boys and never told one another about their brotherhood. When he got sick, he gathered all his sons and told them they could inherit his money if they would fulfill the conditions of his contract. Lee Hsing-wen as father's lawyer – The main antagonist. Andy Chang () as Andy – The boys' father's assistant who came to their school in times of need. Na Tou () as Homeroom teacher, Na Tou – Pathetic and funny, he serves as a comic relief character. Cares for his students, but is wholly unqualified and lacks the knowledge and discipline needed of a good teacher. Miao Ke-li as Principal Hsiao Hsiang () as Gym teacher Mei-Chao Lin () as Ya Tou Mama – Ya Tou's mother. She handed Ya Tou in the brothers' care in order to protect her. She remained missing in most of Ya Tou's life until they reunited on her 17th birthday. Guest appearances Akemi Barbara Katsuki as father's assistant, Akemi – She was the one who gathered the boys to the same place and let the lawyer introduce them to each other. Kenji Wu (吳克羣) as himself – He makes an appearance during Hsiao Yu's competition to encourage him to pursue his dream to become a musician when he suddenly wanted to give up due to his stress. Janet Lee (李蒨蓉) as English teacher, Miranda – She was sent by the brothers' enemy to make them fail English test and take their father's money into his hands. She did not sign up freely, rather she was forced to do so in order to help her catatonic mother. She resigns from her job after she got help from the brothers' father. She ends up dating homeroom teacher, Na Tou. Yuli Lin as Tian Tian (甜甜) – Father's personal nurse, who was also a former model. She was sent to the brothers to take care of the amnesiac Hsiao Chieh while helping Ya Tou do with housework. Her beautiful looks and perfect domestic skills often drag attention from the brothers, which disheartens Ya Tou. Tian Tian herself is also aware of this, and feels bad for her. She resigns from her job after their father ordered her to return, but not before encouraging Ya Tou to keep being the brothers' housekeeper. Monkey as Postman Hakka-Pac (各派克) as Bystander #2 Soundtrack