Xu Yi Yang (徐藝洋), better known was Yiyang (이양), is a trainee in SM Entertainment, and a member of a pre-debut training team named SMROOKIES, established in 2013. She was introduced on September 19, 2016.

She was born on August 12, 1997 in Sichuan, China.

In September 2018, Yiyang confirmed that she had left SM Entertainment.

In 2019, she became a member of Chinese girl group Legal High.

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