A Frog in Winter

Winter looms and temperatures take a dive - Keroro is introduced to Fuyu-Shogun, the General of Winter, which is really just a term given to the cold air currents originating from Siberia, but Keroro visualises Fuyu-Shogun as something resembling Demon Emperor Arago from Yoroiden Samurai Troopers. When the simple act of stepping out the front door proves too much for Keroro, he decides to go through endurance training to combat the cold front, and subjecting the Hinata children to the blizzard simulation against their will only shows them to be far more resourceful than Keroro was.
When Tamama tells Momoka about the blizzard simulation and the accidents that followed, Momoka offers to let the Keroro platoon continue training on her private snowy mountain resort - with the real intention of getting closer to Fuyuki, as usual. While the Keroro platoon starts trekking up the hazardous snowy mountains, Momoka puts her own plan into motion, activating the mountain resort's snow generators - but Kururu chooses to activate his private satellite's weather manipulation function at the same time, and the mountain resort is plunged into an artificial ice age.