On December 9, 2017, 'Istyle presents TGC HIROSHIMA 2017 by TOKYO GIRLS COLLECTION' event will be held at Hiroshima Green Arena.
This year, the event invited two members of Keyakizaka46 as guest model ie Watanabe Rika and Watanabe Risa. This became the first participation for both of them in this event.
Previously, five members of Nogizaka46 have also been invited as guest models in this 'TGC HIROSHIMA' event.