Philipp Weber, the mission designer for The Witcher 3, previously hinted at clues about Vivian in a video, a character from the Blood and Wine DLC. Weber said, "I wonder when you'll discover Vivian's last secret." Fans grabbed the lead and asked Weber about it during a charity livestream earlier this month, in which Weber said "Easter eggs are in Skelliger, much deeper than you think."
YouTube owner xLetalis has been searching for the easter egg, and after some searching, he finally unveiled the 7-year-long mystery. In the "Knight's Love Story" side quest, Geralt investigates a woman named Vivian, who is affected by a curse. The curse made her more and more like a bird, so she had to use magic ointment to disguise her beak, claws, and feathers all over her skin. Geralt has several ways to lift this curse, one of which is to transfer it to the Yellow Oriole Egg, although this could lead to Vivian's death after 7 years.
If you do, Vivian's curse will be lifted, and she decides to spend the rest of her time circumnavigating the world. She went to Novigry first, and from there to Skelliger. (Probably she won't complete the last step, as she should move to a room in Kyle Todd, where Yennefer may live, depending on the player's position in the mission.) ）
xLetalis used the console commands from The Witcher 3 to move Vivian to Skelliger and then speed up the time to make the game a full 7 years. A magical scene came, and Vivian did fall to the ground and die in an instant, as Geralt had warned her. I have to say that CDPR is still very careful when doing "The Witcher 3".