Yumemizu Kiyoshiro, who call himself a "super detective" and twin sisters Ai and Mai cooperate to tackle with problems. Each mystery they brilliantly solve in the end reflects issues that ordinary junior high school students are likely to face. The twin sisters learn many things by solving problems together with Yumemizu. (Source: wiki.d-addicts) ~~ Adapted from the novel series “Meitantei Yumemizu Kiyoshirou Jiken no To” (名探偵夢水清志郎事件ノート) by Hayamine Kaoru (はやみねかおる).