MANKAI STAGE『A3!』～Four Seasons LIVE 2020～ 池袋駅スマイル・ステーションビジョン（地下C-1エリア）にてデジタルサイネージ広告放映中！
Hit stage play "MANKAI STAGE "A3!" first live performance, "MANKAI STAGE "A3!" Four Seasons LIVE 2020" performed at Sep. 20, 2020. Bonus disc comes with behind-the-scenes and MANKAI CAM.