Zhao made it as faithful to the canon as I could. Gathering information about the get-togethers with her, the invitations, the friendship encounters up to level 4, the main story, and the comments made by characters close to Zhao, including Ye Shunguang. Regarding her age, I put that she was 20 or older, because the story implies that her boss hired her when she was young, so she could perfectly well have achieved all those accomplishments from a young age, and anyway, when she was young she looked exactly the same as she does now, so there is no difference regardless of her age.