Eri Kasuga

Yet another of Fujiko Fujio's innumerable manga co-productions, Chinpui is basically Doraemon for girls. Most of the former's cast are replicated in some form or another, right down to a lumbering Gian lookalike. The main difference is that the "hero" is a girl and the Magical Helper is an extraterrestrial mouse (as opposed to a robotic cat).

Plot
Eri Kasuga is a high-spirited Japanese Tomboy who - for totally inexplicable reasons - has been chosen to marry Prince Lulealv of the Planet Mal. In light of this momentous occasion, two envoys have been sent to Earth to announce the upcoming betrothal: Chinpui, an oversized, wish-granting mouse; and Wandayuu, an annoying talking dachshund. Like most of Mal's anthropomorphic population, they can perform miracles by simply shouting their names (with the usual disastrous results).

Needless to say, Eri is none too thrilled with the prospect of marrying an alien she's never even met, particularly since she's only eleven years old (in addition, she already has a "sort of boyfriend"; Uchiki-chan, the quiet smart kid who lives down the road).

Faced with this overt rejection, Wandayuu departs to discuss the situation with the Royal family, leaving Chinpui behind to serve and protect "their future princess." While Eri initially regards Chinpui as a nuisance, he soon proves himself a loyal and trustworthy friend, especially when it comes to solving the inevitable problems caused by Wandayuu's meddling schemes. Hilarity naturally ensues, as Eri is besieged by spacefaring freeloaders, bickering aliens, unexpected nudity, and at least one superhuman rival bent on eliminating the competition.

Panchira
Both the manga and the anime were literally overflowing with panty shots, with much of the humor revolving around Eri's underwear being displayed. Examples as follows: ‣  Chinpui provides Eri with an endless supply of gadgets apparently designed to raise her hemline. ‣  Various storylines involve an invisible skirt-flipper bent on embarrassing Eri in public. ‣  Eri's panties are usually visible during extended flight scenes (much like Shizuka in Doraemon). ‣  The girls at Eri's school often spend their free time "hanging out" on the jungle gym. ‣  Housekeeping scenes always include a shot of Eri polishing the floor with her white cotton panties on display. ‣  The show's numerous alien pests always seem fascinated by Eri's underpants for some inexplicable reason. Any photograph taken of Eri will inevitably turn out to be a Panty Shot or a nude. This is because both the interstellar paparazzi (and the universe in general) seems determined to embarrass her.