1) Avex Trax single 
`Yumekui` is Ai Otsuka`s 12th single under the avex trax label. `Yumekui` was used as the theme song to the movie `Tokyo Friends the Movie`, which Otsuka starred in. The b-side, which is a ballad named `tears`, was also used in the movie. During the first week, the single debuted at #5 with 63,428 copies sold, making it Otsuka`s lowest d...