A Pen, Handcuffs, and a Common-Law Marriage

Forty-year-old detective Eiji Kirisame has found maybe the strangest witness of his life: a silent high school girl named Tsugumi Kuchinashi who was at the scene of the crime. Her statements mostly consist of shoddy doodles on a drawing pad, but Eiji is no stranger to piecing together the truth from limited evidence—and besides, it seems like Tsugumi might have a knack for deduction! So he’ll take every page seriously if it might help solve the case. But, uh, does that last page really say…“Marry me?”?!

Middle-aged police detective Eiji Kirisame brilliant deductions have unraveled case after case, but now he’s totally stumped: How can he possibly convince the infatuated highschooler Tsugumi Kuchinashi to give up on marrying him!? Especially when she’s helped solve three cases already, and is blackmailing him into letting her move in with him! When Kirisame’s next case takes him to her school, he finds more than he bargained for—in more ways than one...