One day, he receives an unusual request to shadow the client's girlfriend and take pictures of her; this assignment leads to subtle changes in his relationships with the women around him.

Tokyo Koen was showcased at the 64th Locarno International Film Festival to compete for the Golden Leopard award in August 2011.

He described the character Koji as "an amiable, passive empty slate on which the more aggressive, knowing types around him can write their own dramas".

[6] Neil Young of The Hollywood Reporter said Tokyo Park was Aoyama's most mainstream, conventional film.

He cited "the insipid blandness of a daytime soap-opera, lacking anything resembling urgency, edge or originality", saying that the cinematography was "picturesquely banal" and the score was "jauntily intrusive".