小坂菜緒

Nao Kosaka is a Japanese singer, model, actress and member of the female Japanese idol group Hinatazaka46. She is an exclusive model for the female fashion magazine Seventeen.

On August 13, 2017, Kosaka passed the auditions for new members of Keyakizaka46's subgroup Hiragana Keyakizaka46 and entered the group as the second generation. She made her debut in the song "No War in the Future", a B-side to "Kaze ni Fukarete mo". On May 19, 2018, Kosaka made her runway debut at the GirlsAward 2018 SPRING／SUMMER show. On May 21, 2018, Seventeen announced that she will be one of the magazine's exclusive model.

After Hiragana Keyakizaka46 was renamed to Hinatazaka46 in February 2019, Kosaka was selected to hold the center position in their debut single, "Kyun". She continued to hold the position for every single released by the group since.