AKB48 7th Kouhaku Utagassen 2017 AKB48紅白対抗歌合戦 2017 December 10th, 2017 at the Tokyo Dome City Hall HKT48 Otona Ressha 大人列車 Unplugged Member Kodama Haruka 兒玉遥 Motomura Aoi 本村碧唯 Fuchigami Mai 渕上舞 Toyonaga Aki 豊永阿紀 Sakamoto Erena 坂本愛玲菜 AKB48ConcertFuchigami MaiHKT48JKT48Kereta KedewasaanKodama HarukaKouhaku UtagassesMotomura AoiNGT48NMB48OTONA RESSHASakamoto Erenaske48STU48Toyonaga Aki兒玉遥