10thシングルヒット祈願裏で秘密裏に行動していた応援メンバーの奮闘をお届け！！
なぜか登山にも挑戦！？お楽しみに！！
We bring you the hard work of the supporting members who were operating in secret behind the scenes of the 10th single Hit Campaign!!
For some reason they also challenge mountain climbing! ? Look forward to it!!
