When the Earth's ecosystem is disrupted due to global warming, a plethora of prehistoric sea monsters wage war on Japan. Led by the powerful Raiga, the monsters ravage the city of Asakusa.
Haruki Masato is a shy youth who gets swept away when he happens upon a rakugo performance. He knocks on the door of rakugo master Imadoka Shoroku in Tokyo’s old downtown and somehow gets taken on as a disciple, and embarks on a path to become a rakugo comedian under the name of Imadoka Koharu.
