Colour me impressed by her courage to feel up her senpai though lol.
As Airi mentioned in a blog post:
Backstage、 she feels up my butt relentlessly！ lol
Some of the wota have even asked about it.HaroSute 162— Skoban🍑Momoloss (@realskoban) 2016年3月30日
Tanimoto's interest in Airi pic.twitter.com/lmHwR0Uurc
[x] Handshake event with Tanimoto Ami
Wota: Why do you fondle butts?
Ami: Hmm, since they're soft and nice to touch.
Wota: Is that so?
Ami: Yup. Ah, listen! The person who butt feels best to the touch is Yamaki Risa-chan! Hers is really great.
[x] Amusing discussion with Ami-chan
Following up at the next handshake
Wota: So it's Yamaki Risa-chan?
Ami: That's right. It's soft and plush?
Ami: Yup, plush. (while making butt rubbing motions)
 Nanami: Today Tanimoto Ami told me: "Your butt is a good buttΣ(°д°ﾉ)ﾉ! I'm shocked!!♪ pic.twitter.com/gkHsONlUhS— Country Girls Blog (@countrygirlsbot) 2016年4月3日