Chisato Takatsukasa, a 35-year-old author, has such a youthful appearance that anyone would think him to be in his early twenties. His work is inspired by his idol—the best-selling mystery author Saki Shunka, who is as much of an enigma herself as the plots of the books she writes. Chisato is also the extremely overprotective father of 15-year old Riju, convinced that the "friends" his son constantly brings over are...