Eccentric and blunt, the walrus Hiroshi Odokawa leads a relatively ordinary existence. He earns his living driving a taxi, where he encounters several distinct characters: the unemployed Taichi Kabasawa, who is determined to go viral; the enigmatic nurse Miho Shirakawa; the struggling comedy duo "Homo Sapiens"; and Dobu, a notorious delinquent. However, Odokawa's straightforward life is poised to be upended. The investigation into a missing girl, which the police have been pursuing, traces back to him, putting both the yakuza and a pair of corrupt officers on his trail.