Rin posted on her blog yesterday that she is now looking for a training partner(s).
She says it can't be anyone (lol).
Just contact her gym and stop by.
They will choose the most suitable training partners.
The pic looks a little weird. It like they photoshopped someone's head onto her body.
Anyway, she's definintely slimming down.
She also mentioned in the same blog post that she's recently became really interested in koala bears.
I have no idea if there is some hidden meaning behind that.
Source (in Japanese): http://d.hatena.ne.jp/nakarin89/20160804