Arknights: Theresa's Miraculous Arrival

(The author doesn’t know why AI automatically adds a female emperor label)

After Xingchen borrowed his friend's full-level Yida to clear the episode, he woke up the next day to find that the assassinated demon king had come to his side. At the same time, he unexpectedly gained the ability to enter Terra in his dreams.

On one side is the "real" life on Earth, and on the other side is the "dream" adventure on Terra. How will Xingchen and Theresa face challenges in these two worlds?

(Including elements such as Warhammer and Tide of War)