Ryunosuke's oblivious pining becomes the entire comedy engine, he's chasing a girl who doesn't remember being anything but human, and the show mines genuine laughs from how much he has no idea what he's actually dealing with. The '98 OVA energy means everything moves at a comfortable pace, letting the character moments breathe instead of sprinting toward spectacle. This is Nuku Nuku for people who liked the franchise but wanted it quieter, slower, less concerned with whether you're keeping up.
A combat android with no memory of her past arrives at the Natsume household and takes the name Atsuko Higuchi, embedding herself into their daily life with perfect domestic skills and a disarming smile. Ryunosuke, a fourteen-year-old boy, finds himself increasingly attached to this beautiful new housemate. But Maneki City begins experiencing a wave of catastrophic incidents: military machines spiraling out of control, experimental weapons tearing through neighborhoods, aircraft crashing into buildings. Each disaster leaves behind a single clue: a mysterious girl spotted fleeing the scene. As the destruction escalates, the connection between Atsuko's arrival and the city's chaos becomes impossible to ignore. Caught between her genuine affection for Ryunosuke and an instinctive drive toward violence, Nuku Nuku struggles to understand what she really is. The series balances comedy and action as secrets about her origins surface, forcing everyone to confront the question of whether a weapon can choose to be human. Fast-paced and unpredictable, this OVA mixes sci-fi mayhem with unexpected heart.