Fungi have a mysterious ecology that science has yet to completely illuminate. Actor Oshima Yuko, who loves to walk in the forest, is guided on her exploration by nature photographer Osaku Koichi, who conveys his fascination with fungi. The two uncover the wonders of these mysterious organisms as they visit a forest in Nikko, Tochigi Prefecture. Osaku uses time-lapse photography to record the ways fungi behave and reproduce, which are imperceptible to the naked eye. In addition, a famous chef introduces a dish made with rare mushrooms. Join them on a 30-minute journey through the amazing world of fungi.