Two teenagers are suddenly parents to an alien baby who won't stop floating through their apartment and calling them Mom and Dad in front of their classmates. The show treats this premise like a sitcom setup that actually lands, turning what could've been a one-joke gimmick into 78 episodes of a family that accidentally works. Every character feels lived-in enough to carry their own storylines, and the romance subplot never chokes out the genuine weirdness that makes this thing tick.
When Miyu's parents jet off to NASA projects in America, she's left in the care of her classmate Kanata and his father. Just as the two awkwardly settle into cohabitation, a spaceship crashes through their house, depositing an adorable alien infant and its shapeshifting pet caretaker into their lives. The baby immediately bonds with Miyu and Kanata, insisting on calling them Mom and Dad while casually levitating around the house and reading their minds through its psychic powers. What follows is pure domestic chaos wrapped in sci-fi absurdity. Miyu and Kanata scramble to keep their extraterrestrial houseguest hidden from the world while learning to parent an alien who has no concept of human limitations. Between school obligations, neighborhood close calls, and the baby's increasingly bizarre antics, the unlikely family unit discovers that raising a child, even an intergalactic one, demands patience, teamwork, and unexpected tenderness. It's a comedy that balances genuine heart with ridiculous premise, perfect for anyone craving lighthearted humor grounded in sincere character relationships.