Sgt. Frog Season 7 Episode 326 Chibi-Kero: The Fireworks That Summer, Sir! / Keroro: Swimsuit Beauty Contest, Sir!

The platoon recalls a time back on Keron when they had to sneak Zeroro out of his house so they could all see fireworks together. Later, the Hinata siblings, the Keroro Platoon, and friends return once again to Hicksville Beach, where a new nighttime swimsuit beauty contest is going to be held, and Natsumi (with a temporary adult body) is yet again participating!