BEIJING — In a small dance studio in Beijing, the members of China’s newest entry in the national pop-music pageant ran through a sequence of pulsing pelvic thrusts and choreographed crotch grabs.

After a three-minute workout, the group’s leader, Lu Keran, breathlessly asked the band’s manager: “Now can I go to the bathroom?”

It has been a hard and fast ascent for Ms. Lu and her bandmates in Acrush — five young women who want nothing more than to show the world they can become their country’s biggest boy band.

Acrush, which stands for “Adonis crush,” after the Greek god, is the creation of Zhejiang Huati Culture Media Company, one of China’s pop-music factories and a supergroup incubator aiming to saturate the market with ensemble acts that can rack up Weibo fans and flood Tencent video streams.