An American actor in Tokyo struggles to find purpose until he lands an unusual gig: working for a Japanese 'rental family' agency, playing stand-in roles for strangers. As he immerses himself in his clients' worlds, he begins to form genuine bonds that blur the lines between performance and reality.

Asako lives in Osaka. She falls in love with Baku, a free-spirit. One day, Baku suddenly disappears. Two years later, Asako now lives in Tokyo and meets Ryohei. He looks just like Baku, but has a completely different personality.

Seiji is a third generation "Gosei kai" gang member. He works to build up the group's strength. Meanwhile, a journalist investigates a case that occurred 19 years ago. He meets Hayato, Daisuke and Asami.

The vocalist of a broken up band tries to get the group back together.