Yûsuke Numata

Confined in the castle tower by her father, princess Arete spends her days watching the world outside her window. Sometimes she seeks out to watch the common people at work. The knights of the kingdom compete for the right to marry her and rule the land by competing to see who can find powerful magic objects made by a long dead race of sorcerers... (animenewsnetwork.com)

Against the backdrop of World War II, humans are also fighting against alien invaders. The Nazis and the Kanto Army are trying to steal alien technology to gain an advantage. Using the same alien technology to power giant robots, the Kishin Corps try to keep the Axis powers and the aliens in check. The Nazi's have joined forces with alien invaders in a bid to conquer the world, and only the valian actions of a small band of heroes and their armored giants. (Anime News Network)

In the 30th century, time travel becomes illegal after a time paradox crisis. The Time Protection Department (TPD) is established to watch for and stop time crimes. Four new enlistee cadets of the TPD are tricked by Don Dolnero and his gang into letting them time-travel to the year 2000 to commit various crimes and, to protect history, the four cadets pursue them. They encounter a severe problem: the Timeranger program requires five members for the first operation. (imdb)

By 2030, Shotaro's son was in charge of Tetsujin-28. An Interpol agent like his father, he used the aged robot to combat the Pink Mafia and the Franken organization. (myanimelist)

Hanawa's home had six friends come from different countries, under the request of the students, these foreign friends admitted Chibi Maruko and other student's home. Andrea from Italy, who lived in Maruko's home. Although they get along with a variety of cultures and backgrounds, they gradually became friends. Maruko and Andrea have developed a romantic love story.

Haruto and Kosuke go into the Donut Shop Manager's Underworld and use the powers of the Dance Ring.