Using an Awakening Doll to probe is the lowest cost and safest method. Regardless of whether Yan Jiayu is restricted in a special space, inside a container prop, or in a legitimately opened instance, the Awakening Doll can bring out a message.
If the Awakening Doll enters and can't contact the outside world, then Yan Jiayu is likely trapped in a special space disconnected from the game.
Little Pink Hat didn't mind using a doll, but she strongly refused to personally take the doll inside. If it truly were a space separated from the game, she probably wouldn't be able to come out.
The suggestion from Yu Country was simple: once they found the entrance, just find someone to take the doll inside.
Xu Huo borrowed the doll, and now he had to wait. First, for the Yu Country players to find the entrance, and second, to see if any Battle Dolls came nearby.
