I have a theory that the book owned by mc are actually came from the past. that "dimension" that the mc who only can enter ARE actually the past. I don't have a lot evidence but my main evidence is basically the conversation that mentioned the contract of the "first" awakener and the golden whale.
chapter 33. page 7. master baek cover hidden in the backpack
U don't read in multi page mode?
I read it on multiple page but I put page for more detail
Ooo ok