To commemorate the album release, we will be giving away official merchandise from the "Pocari Sweat Ion Water presents back number tour 2016 "Mirrorball andシャンデリア" supported by uP!!!" tour, which will be held from January 2016, to 10 lucky "one room" members who purchase the album, all signed by the band!! Application period: December 8th (Tue) to December 22nd (Tue), 2015 *Please note that you may only apply once per person, regardless of the number of albums purchased. For more details, please check the form enclosed in the first limited edition and regular edition "first production run" of "シャンデリア".