Riko had a nice supporting role in the film 'Go, Masao!'
Along with Riko, the film stars Shingo Katori (of SMAP), Ryoko Hirosue, Ken Mitsuishi, Susumu Terajima, and Takehiko Ono.
The closing theme song was Atsuko Maeda's 'Kimi Wa Bokuda'.
I have posted about the film in the Japanese film section, but a very heartwarming film.