The question being asked is how much embarrassment four individuals and a penguin can handle. Aito, Rihoko, Choji, Fuusuke, and Hiroyuki are posing as the Ninku but are quickly exposed by the real Ninku. While in a tranquil town, they face off against the perilous Heaven and Earth brothers, striving to defeat them. Fortunately, with the aid of genuine Aito, Choji, and Fuusuke, they manage to turn the tables. The outcome between the Ninku's enchanting martial arts and the fatal combat style of the Heaven & Earth brothers remains to be seen and will only be resolved with time.