TWICE Sana, today's "LOVESTAGRAM".

* LOVESTAGRAM: The idols in 'secret love' secretly express their feelings towards each other on Instagram

* Sana, after today's music program , " Good work, Once, Twice","Good work Soyu senior, I love you"

* SISTAR former member Soyu's SNS has a signature album of TWICE and "Sana-san, me too..."