Are Wang Rong and Jiusi Gu good friends? There is no clear answer to this question. According to the current information, we are not sure whether Wang Rong and Jiusi Gu are good friends. Maybe they are good friends, but it does not rule out that they are just ordinary acquaintances or have no particularly close relationship.

However, we can show that they may be good friends through a picture. The following is a picture from Unsplash, in which two friends are enjoying time together:

This painting expresses an atmosphere of friendship, intimacy and happiness, which may represent the relationship between Wang Rong and Jiusi Gu. However, please remember that this is just a picture, and we can't rely on it to determine the specific relationship between two people.

In a word, whether Wang Rong and Jiusi Gu are good friends needs further information and evidence to prove.