The only thing Kayden could do was fight the cold and study his soul. It was funny because she had nothing and, at the same time, she had everything. It was very similar to soul mana, but in a version trillions of times more concentrated.
The cold wasn't extreme for Kayden, but it was constant and tried to break his will day after day; there was no pause, and the passage of time did not exist for him at all.
Something he wondered was why he blindly trusted Licht and his proposal. It didn't make any sense in his view. From the beginning, he knew it wasn't a good idea to trust like that, but something compelled him to go there.
Kayden did not easily make thoughtless decisions, much less decisions that could lead to a less-than-ideal end. After a long time, he concluded that he had been manipulated by someone, but he didn't have a very clear idea of who exactly it was.