The comedy runs at cartoon logic speed where nothing needs to make sense because the joke lands harder when it doesn't. B-Ko's schemes spiral into absurdity so fast you're laughing before your brain catches up, and the show knows exactly when to cut to the next gag instead of milking it. This is what happens when a sequel doesn't care about explaining itself to newcomers, it just accelerates everything ridiculous about the original and dares you to keep up.

Summer vacation hits Graviton City, three weeks after an alien ship ended up perched atop the town. A-Ko is worried about her weight, and B-Ko is already plotting her next scheme to beat A-Ko and win C-Ko. Napolipolita and Spy-D, meanwhile, are badly homesick and want nothing more than to get back to their planet. Hikari Daitokuji, B-Ko's father and head of the Daitokuji Financial Group, has his eye on the aliens' advanced technology. He equips the local military with new mecha and sends them after Napolipolita's ship, while a growing number of mysterious men in white suits keep turning up around the girls. Expect comedy and mecha action in one ridiculous summer.