Rock, a robot with a "young man's" appearance, who has thirteen gears inside his body that will change color as they receive a 'heart' or a strong emotions of human being that will make him more human-like. Because the toys are created for human happiness, Rock strives hard to grant people's wishes in exchange for a 'heart' that they could give him.
Chousuinou Kei: Makafushigi Jiken File
The plot follows Kei Kazaoka a high school sophomore who has an "ultra" computer embedded in his brain. He uses his increased intelligence to help the police with weird and mystery cases, that go beyond the normal bounds of reasoning. Most of these cases are related to the supernatural and magical. (Source: MU)