What's the name of Karry's own sister?

Her mother's good friend has a sister named Mozi. Coincidentally, she is also surnamed Wang. Karry and his sister get along very well. The following details:

Name: Prince Mo

Age: 13

Birthday: September 2002.15

Constellation: Virgo

Hobbies: painting, basketball, calligraphy, singing, listening to music.

Height: 166cm

Weight: 92

Features: love to laugh, love to fantasize, very cute when in a daze ~

Introduction: A well-deserved school flower, very shy, will turn red when handing in a love letter.