Des:Mei and Naoya suddenly become a family due to their parents marriage. Mei, a female college student, treats Naoya in the same casual, curmudgeonly way she did when she was a child, so naturally Naoya was not aware of Mei as a woman. However, Mei actually loved Naoya, but she couldnt be honest because she was worried about his appearance. However, Mei musters up her courage and tries to arouse Naoya with naughty words for various reasons when they are alone. Naoya gradually becomes aware of her like that...