Not good enough. How does Ye Fengci control the transmigrator actions if both are separated? I mean, she actually tried to get close to Yun'er, it can't be a coincidence, she also was able to keep in touch with her group, that for what I understand isn't from that country, and Ye Fengci said that she managed to infiltrate Yun'er mansion. It can't be a coincidence, she knows about the transmigrator, and somehow controls her. How and why she does that, are two big plotholes in this side story, that's quite long and has absolutely nothing to do with the main plot. The author just thought an what if an isekai character appears in a time traveler story.