Asahi Shougakusei Shinbun

The time is the Sengoku period, and the characters are ninjas-in-training who have entered Ninjutsu Gakuen. Their sights are set on becoming first-class ninjas, but they usually end up creating chaos. (Source: Jmanga)

Unlike her father and younger brother, Corona Hoshino has no time for the children's show Space Patrol. After all, she is far too busy being the student council president of her sixth-grade class at Cosmos Institute. With vice president and close friend Hinata by her side, Corona manages to keep up her productivity and popularity around the school. But her whole world changes the moment she stands up for her quiet schoolmate Lan Tsukishima, who is a diehard Space Patrol fan. In what she initially thought was a simple act of gratitude, Corona receives a Space Patrol watch from Lan. However, the toy-like watch activates and transports Corona far away from home; it turns out Lan sees her as the perfect candidate for becoming her partner in the very real Space Patrol! Working under their teddy bear boss named Instructor, Corona and Lan must carry out their galactic missions while maintaining their school lives. [Written by MAL Rewrite]

The story takes place in a country by the name of Popolocrois in which the people live peacefully. King Paul is a kind-hearted man who entered into a marriage with one of the daughters of the Ryuu clan, Sania, in order to overcome the barriers between the different races. The Queen soon gave birth to a child, Prince Pietro, who will play a significant role in bridging the gap between the humans and the Ryuu clan. This series is was discontinued.