D.I.K.A

Yuri is an average high school student, until he intervenes in the bullying of a classmate, Ken Murata, and gets his head dunked in a toilet. Surprisingly he is sucked into the toilet, and ends up in another world. When he reaches dry land, he sees some people dressed in medieval costume and speaking in some weird vernacular. He assumes that it is a theme park of some sort. The people seem to be frightened by him, pelt him with rocks, and begin to form a small mob. He's rescued by Adalbert von Grantz who uses some form of magic so Yuri understands the local language. Konrad Weller and Günter von Christ then rescue Yuri and take him to Blood Pledge Castle, the residence of the Maoh, where he soon finds out he is the new Maou or Demon King will rule over the Shin Makoku ("New Demon Kingdom") (眞魔国). The culture in Shin Makoku is very different from the Japanese culture Yuri is accustomed to, and the differences make for some amusing mishaps with long ranging consequences, such as an accidental proposal of marriage.

Throughout the series, Yuri is constantly confronted with the results of even the smallest choices he makes. With a strange power dwelling inside of him, Yuri becomes a deliverer of justice in the world of Shin Makoku.

Shin Makoku seems to be Germanic in that the pronunciations of the names and the indications of language in Shin Makoku point to its being German. Also, Conrart gives Yuri his name which means "July" in Shin Makoku. In German, July is "Juli" pronounced "Yuli". Due to the lack of distinction between the Western sounds of the letters L and R in the Japanese Language, this is rendered in Japanese as "Yuri." Also, it may be noted that the nobles of Shin Makoku are named using the traditional naming conventions of German nobility, using the preposition "von" in their surnames to denote their fiefdom, as in Gunter von Christ and Wolfram von Bielefeld.