Aspiring to be admitted to a good university and to become a lawyer, Tasiro Yuusuke, a tenth-grader from Kyushu, enrolls in a prestigious high school in Tokyo. Plans are made for him to live in his uncle's house, part of which is rented out while his uncle is abroad on business. A realtor's mistakes leaves Tasiro sharing the house with Kei Yamaba, the most beautiful girl in the school, who is also his classmate. There is the risk that their unexpected 'co-habitation' will be discovered by the school authorities.
A widowed restaurateur is faced with scandal after discovering her late husband had a child out of wedlock. Hearing that two criminals had attempted to take over the restaurant from her late husband, she hires her late husband's best friend, a private detective, to investigate.
