[1][2] Shinkawa made her screen debut in the television drama Chōnan no Kekkon in 2008, and made her film debut in the 2010 film Matataki in which Keiko Kitagawa played the lead role.

[7] In May 2015, it was announced that she would graduate from Seventeen,[8] then subsequently contracted with the Non-no magazine.

[9] From October 2015, she will play the heroine in the NTV's midnight drama Seishun Tantei Haruya.

[10] On August 9, 2019, Shinkawa's agency announced that she had married her non-celebrity partner.

[11][12] On November 17, 2022, she announced that she was expecting the couple's first child, who is due around May next year.