Soshite Gonin ga Inakunaru - And Then the Five Disappear - Hayamine - Edition with furigana

Soshite Gonin ga Inakunaru (そして五人がいなくなる) is the first novel in the Meitantei Yumemizu Kiyoshiro Jiken Note youth mystery series by Kaoru Hayamine.

Yumemizu Kiyoshiro is a detective — it says so right on his nameplate and his business card. The trouble is that he is a master of forgetfulness, capable of forgetting whether he has even eaten, as well as lazy and entirely his own person. When this unusual detective takes on the case of a mysterious figure known as "the Count," who makes children disappear one after another, the puzzle is solved in no time… or perhaps not. A mystery brimming with humor.

Original Japanese version, with furigana.