Tasuke, a student in a police academy, wanted to be the manager of the academy and arrest all criminals in Edo city. Tasuke is still eleven years old, but, he really wanted to get rid of criminals so the world will be a better place to stay in. Tasuke have three other friends; Omon and the other two. With them, they work together and that is the start of a funny and sometimes serious adventure.

An adaptation of the first series, with different characters and an alternate setting.

Western Restaurant Nekoya is a popular eatery located on a street corner in a Tokyo shopping district. Serving both traditional Japanese fare as well as Western dishes, this eating establishment is popular among Tokyo's residents. But this seemingly ordinary restaurant is also popular with another type of clientele... While the restaurant is thought to be closed on Saturdays, the truth is that on this special day each week, its doors are instead opened to the inhabitants of other worlds. From dragons and elves to fairies and mages, this restaurant has no shortage of strange customers. Nevertheless, the enigmatic chef known only as "Master" will be waiting to serve up their favorite dishes with a kind smile and keep them coming back for many more Saturdays to come. [Written by MAL Rewrite]

The year is 2050. A young engineer named Derrida Yvain became famous thanks to his contribution to the development of the "Autonomous Machine DZ" at Rebuild, the manufacturing company founded by his father. One day, Derrida and his colleague Nathan discover a flaw in the DZs and try to warn their boss, but are ignored. Although Derrida and Nathan are aware of the danger, they reluctantly decide to put off taking any measures, and instead go to Nathan's daughter Mage's birthday party. The next day, after enjoying a peaceful day, Derrida and Nathan are suddenly attacked by unknown forces. At the end of the escape, Derrida falls into a cold sleep machine and 10 years later, he wakes up to a devastated world in the middle of a war. While Derrida is attacked by a group of out of control DZs, he almost gives up, but he recalls Nathan's last words. "Take care of Mage." Despite the harsh fate that has fallen upon him, Derrida sets off to seek Mage. (Source: ANN)