The entire plot is a three-way romantic misfire where nobody wants the person who wants them. A-Ko's working fast-food shifts to impress a guy who's actually into C-Ko, while B-Ko's scheming to separate them both, and the whole thing plays like a slapstick farce that knows exactly how absurd it is. It's 1988 OVA energy: colorful, chaotic, moving at cartoon speed, where the joke is that everyone involved is chasing the wrong person at the wrong time.

A-Ko spends her school break fixating on finding the perfect boyfriend, sparking an argument with C-Ko that sends her friend running off, where she is nearly struck by a motorcyclist named Kei. A-Ko takes a part-time job at a fast-food restaurant to save up for a party dress, and when Kei turns up there, she falls for him on the spot. The catch: B-Ko also has designs on Kei and isn't about to let A-Ko have him without a fight. What neither of them realizes is that Kei's attention has already been claimed. C-Ko holds his gaze completely, leaving A-Ko and B-Ko to scheme and compete in total obliviousness. This third installment leans into romantic comedy chaos with the franchise's slapstick energy and sci-fi trappings. The tone stays light and fun, with plenty of humor in watching three girls operate on completely different pages about the same guy.