Karolina Shiino had already caused controversy when she became first European-born woman to win title

A Ukraine-born woman who was criticised for not being “Japanese enough” after winning the Miss Japan contest last month has relinquished the title after a weekly magazine revealed she had been having an affair with a married man.

Karolina Shiino drew praise and criticism after she won the Miss Japan title last month, becoming the first woman of European descent to receive the accolade. The 26-year-old was born in Ukraine to Ukrainian parents, who moved to Japan when she was five.