: Dai's middle ear received the transmission from Yun Xu, a female agent with a voice peculiar and low, and he wasn't sure if she was slightly annoyed by the book search, or if it was some other reason, but the library was usually extremely quiet.
. Yun Xu, who was in the middle spot, quickly approached Dai due to Dai being on the right side and Yun Xu was on the left, with the two girls examining books from left to right and vice versa.
. With some people enjoying the simple pleasure of holding something purely, like the wind blowing through a card, it's actually quite genuine, unlike him.
. Though there are electronic devices now that can directly search for books, Yun Xu still enjoyed the feeling of holding a card, lightly waving it like a fan, as she searched the rows of books.
"Special Body Integrative Polymer... Insect Protein... White Substance"
