Volume 1

My Boy in Blue volume 1 is the first book in the series. It contains cases 1-4.

Official Synopsis
"Kako gets tangled up when she lies about her age in order to attend a company-mixer party for singles and ends up totally infatuated with her young local policeman! And it looks like it’s mutual with Kota... until he finds out Kako's still in high school. Read on to see if straight-arrow Kota manages to find a way to do the right thing as our story unfolds in the first volume of this upbeat new romantic comedy from Maki Miyoshi!"

Case. 1 Off-Duty Interrogation
The schoolday is over, and Mikado Yaguchi is telling her best friend and the series' protagonist, Kako Motoya, about a singles' mixer party that the two have been invited to by Mikado's sister. Kako is reluctant about attending, being worried about the age limit of the party- after all, it is intended for adults only, but the girls are first years in high school. Mikado tries to swat Kako's worries away by exclaiming that the two are going to pretend to be 22-year-old baby faced college students to make the actual adults not suspect anything. Kako is still not too keen on the idea, but somehow still ends up going with Mikado.

While Mikado is like a fish in the sea at the party, mingling with the men and participating in underaged drinking, Kako is more nervous, only eating and not getting herself drunk. She treats the staff with kindness and respect, and tries to be as responsible as she can. This behaviour catches the eye of the man sitting next to her, something which Kako is not at first delighted by. Her opinion is quickly swayed, however, when the other men at the party try to pressure her into getting as drunk as Mikado, and the man takes it upon himself to help her out of the mess by drinking the tequila shot that was offered to her by Mikado's sister.

After the party, Mikado and her sister bicker about Mikado needing to go home, and Kako finds herself alone, feeling down about not having had the chance to thank the kind man from earlier, Kota Sagano. To her delight, she sees him and proceeds to buy him a non-alcoholic drink as a thank you gift. He accepts the gift, though he is confused by how formal Kako is being with him, as she had forgotten about her cover-up story as a 22-year-old at this point. His confusion reminds her of it, and she then proceeds to offer to be more formal from now on, which Kota happily agrees upon. Kako then tries to make a run for it, but Kota offers to walk home with her, which she cannot refuse. The two share a nice, somewhat coy conversation about how both of them are single, and Kako notices she may be catching feelings for him. However the warm atmosphere quickly takes a turn for the worse, once Kako accidentally reveals her real age of 16. Kota is shocked and angered by the truth, scolds Kako on being irresponsible and sends her home with a taxi.

Soon thereafter, Kako and Mikado are going to school together, sharing a bike. This being illegal, they panic when Mikado notices a police officer nearby, and try to cover up their minor crime, but alas, end up getting stopped by him anyway. As it turns out, the officer is none other than Kota, and the girls' already awkward situation is turned worse.

Case. 2 A Cop's Embarrassment
TBA/WIP

Case. 3 Different Kinds of Tears
TBA/WIP

Case. 4 My Boy in Uniform
TBA/WIP

Trivia

 * Volume 1 was originally meant to be a self-contained one-shot story. It was brought back for a second volume, before it then got turned into a long running series.
 * The covers for cases 2-4 are the first ones in the series that feature only one character. The characters making their solo image debutes are Kota Sagano (Case. 2), Kako Motoya (Case. 3) and Mr. Motoya (Case. 4).
 * The cover for Case. 4 is the only chapter cover that features Mr. Motoya. In addition to this, he is only featured in the additional cover of volume 16.
 * The cover is also the first one that is part of the story, meaning that the image is diegetic. In total, My Boy in Blue features ten diegetic chapter covers.