The side story for Rin Asahina. Around the time that Rin had become accustomed to her new idol lifestyle, along comes her mother from Akita prefecture for a visit...!?
A-chan has been fretting over her small bust for many years. So, what's she gonna do about it...!? Check out what crazy antiques A-chan and her happy chappy comrades (?) get up to in their arduous plight for voluptuous bosoms!