HKT48 member Sashihara Rino and AKB48 member Kojima Haruna promoted each other's related products on their Twitter at 11 February 2016.
Kojima Haruna promoted Sashihara Rino's upcoming photo book "Scandal Addiction", on the hand, Sashihara Rino promoted magazine anan (10 February 2016 issue) with Kojima Haruna on cover, Sashihara Rino and Kojima Haruna's tweet:
Sashihara Rino: Mr. Akimoto mistook this (Scandal Addiction) cover is Kojima Haruna's, please pre-order here!
Kojima Haruna : For a moment, I thought it is me too, (Laugh)
一瞬じぶんかとおもった🤔笑 https://t.co/MlFa8IAycH— 小嶋 陽菜 (@kojiharunyan) February 11, 2016
Sashihara Rino: Eh? This (anan) is, Kojima san...? Sashihara san...?"
Pre-order "Scandal Addiction" at CDJapan:あれ？これは、小嶋さん…？指原さん…？— 指原莉乃写真集 スキャンダル中毒【公式】 (@345__vegas) February 11, 2016
Order "anan" at CDJapan: