spanked in high school?

NAGAI Rina is spanked with a baseball bat in the event named "High school Fuji"

According to her blog (in Japanese),she is punished because she lost the game compared with HAMADA Yuri.

cf. http://ameblo.jp/nagairina/entry-12067303664.html

I found the pic on that upload on p.twipple.jp,

http://ryu4spanking.tumblr.com/post/128478414059/アイドルがケツバットされるイベント