The reason for this is that Ming Kai, the factory director, once joked to himself, "I have the final say in your jungle area." Later, the commentator changed it to "I will raise pigs in your wild area" and became popular. As a result, he became the director of the pig factory.

The meme 7777 is Mingkai’s comeback after experiencing 4396 for a period of time and changing his name to cheerlove7, so viewers like to use 777777 in his live broadcast room.

Extended information:

Ming Kai, born on July 25, 1993 in Wuhan, Hubei, game ID: Clearlove, is a professional e-sports player in China's "League of Legends" and the head coach of the EDG team. Former EDG team jungler.

In August 2012, he joined the WE team; in December of the same year, he helped the WE team win China's first LOL world championship in the IPL5 World Finals. In February 2014, he transferred to the EDG team; in May of the same year, he helped the EDG team win the LPL Spring Championship; in August of the same year, he helped the EDG team win the LPL Summer Championship. In April 2015, he helped the EDG team win the LPL Spring Championship.

In May of the same year, he helped the EDG team win the League of Legends mid-season invitational championship and was officially named MVP by the tournament, becoming the first Chinese player to win the LOL world championship twice. In August 2016, he helped the EDG team win the LPL Summer Championship. In September 2017, he helped the EDG team win the LPL Summer Championship. On December 16, 2019, Mingkai announced his retirement and became the head coach of EDG.