A moon princess crashes into Earth and actually stays in love with the same person for all twelve episodes. The romance isn't a subplot that gets forgotten between action beats, it's the spine of everything, and both of them know what they want from episode one. Most shows this light-hearted either turn mushy or abandon the relationship entirely by the finale. This one commits.

Long ago, settlers on the Moon founded the Sphere Kingdom, but a war fought centuries ago cut off relations with Earth. Travel between the two is forbidden, and the only point of contact is Mitsurugasaki Central Port City. That changes when Feena Fam Earthlight, princess of the lunar kingdom, is sent to Earth on a homestay. She lodges at the home of Asagiri Tatsuya, where she sets out to learn how people on Earth live and what their customs are. Adapted from a bishoujo game by August Soft, the twelve-episode TV series mixes comedy and romance with a science fiction backdrop, built around a love story between a lunar princess and an Earthling.