C303 Channel Ambush
Although there's a way to avoid the metal lifeform's line of sight, Yung Yi still needs a way to retreat when he thinks of the possibility of a powerful existence inside the building. He can't escape in case of danger." Thus, he told Hu Yingying to find a relatively safe place and build a teleportation Magic Formation. If something bad happened, Yung Yi could quickly open the portal and escape