This pet mouse is called Yuanbao. It is a mysterious mouse. This is an extremely rare species. It won't appear for a hundred years. He loves Kirin fruit most, is obese, loves his master Sun Wuji most, and regards him as a rival in love, similar to the existence of spiritual pets.

In the original novel, Lingchong Yuanbao was white, but it turned into a brown mouse in the play. Although there is a gap in appearance, it is equally cute and does not hinder everyone's love.