Teacher DC, whose real name is Dong Can, used to be an EHOME player and a Dota player, and has the reputation of the first teaching assistant in Asia.

Miss's real name is Han Yiying, a professional player of Warcraft, a member of Tyloo team, and she is good at NE.

No.7, whose real name is Teng, is a famous soldier. He won the national championship of "Tools of Evil" for three times in a row, and later joined the Dota community and worked as a writer of Dota Weekly.

I hope my answer is helpful to you.