Sexy Voice and Robo

A 14-year-old girl named Nico Hayashi works at a phone-dating service, using the job to practice reading people. Her talent catches the attention of a yakuza boss, who starts giving her various tasks, which she eagerly takes on. Adopting the alias "Sexy Voice," Nico teams up with Iichiro "Robo" Sudo, a man in his twenties who is fascinated by toy robots and was once one of her clients. Together, they begin to get involved in more complex situations. The story includes two additional chapters titled "Junction" and "Detective M."