Just a theory but maybe the people who died when the building collapsed are the ones that ...

But why that novel only? Was his friend also reading the same novel?

Spoiler



I didn’t read the novel, but I saw a spoiler once saying that his sister’s wish for him to have a happy life before dying was what trapped the people who died in the building inside the novel. His sister is also there, as the MC’s brother’s in the novel. Or something like that? Honestly, my memory is shit hahahaha

Damnnn! Can't wait for the future chapters