Comments of chapter undefined of We Agreed to Brag Together, But You Secretly Dominated the World

Ok so after reading the last paragraphs multiple times here is what I understand.The system gave him a target of 100000 people to brag that he has some huge backing after he just gave away the turtle and he forgot all about it cause it was such a huge number but just now he completed the target amount and now he has a huge backing.

Who is this long wu character?Was she introduced before?

Gift from system ?