A young Tokyoite named Hitoshi Nagano who, on a whim, takes home a cell phone belonging to Daiki Hiyama who accidentally put it on Hitoshi's tray at McDonalds. Hitoshi uses the phone to call Daiki's mother, pretending he is Daiki, and convinces her to wire him 900,000 yen. Three days later, Hitoshi returns home from work to discover Daiki's mother in his apartment, and she seems to truly believe Hitoshi is her son. Even more bizarre, Hitoshi discovers his own parents now treat him as a stranger; they, too, have a zmey living with them as Hitoshi. At a loss for what else to do, Hitoshi begins living as Daiki, and no one seems to bat an eye. -- Provided by publisher.

"Originally published in Japanese in 2010 by Shinchosha"--Title page verso.