ミス・ユニバース・ジャパン
On 12 March 2015, Miyamoto was crowned as Miss Universe Japan 2015 (Miss Japan 2015) at Hotel Chinzanso Tokyo in Bunkyō-ku, while Miss Oita and Miss Chiba were runner - ups. As Miss Japan 2015, she represented Japan at Miss Universe 2015 and made it to Top 10.