What was the original name of Mayday member monster?

Monster, formerly known as Wen Shangyi, is similar to the number 5 3 1, so May 3 1 is called "Wen Shangyi Day" by fans. .

At the launch conference of Falling in Love with the Ninth Ball, the monster joked that he was not worried about the box office, saying that his real name was Wen Shangyi and his pronunciation was the same as "Wen Yi". Take its meaning, he hopes that the box office will be hundreds of millions ~ ~

^_^