anyone have theories about that book and tatsuya's reaction?

Ummmmmm... Isn't he the author?

I thought so too, unless they messed up on the translation.

I feel like he uses an alias so he doesn't know that the guy wrote the book

But didn't they say it's 'his father' who was the writer in the first chapter and they said the pen name and Daichi fangirled over it?

We were told that Tatsuya was adopted but we were never told about his birth family. So what if Tatsuya's dad really was a famous writer (different pen name) and he's now following in his footsteps?

i dont know anymore ╮(￣▽￣)╭

The friend was covering for him. He is the actually author of the books. No one outside of his adopted family and his best friend know that he is the real author.

Right. That's why I put it in quotes. That the author who is 'said' to be his father (at school) is actually Tatsuya himself.

But what if this is close to the truth and his birth father was a famous writer (different pen name) and that book Daichi is showing is one the father wrote?

Actually, does his adopted family know he is a writer? It kind of hinted they didn't know where he was getting the money (inheritance)?

I believe that his family does know he is the author. I believe that when the adopted mother asked him about the school trip fees that it was more of her as a mother wanting to pay for it. Tatsuya doesnt want to put a burden on his family after they took him in and gave him a home.

Tatsuya was the author.When he saw it he said it in his thoughts.Maybe you have to check it again.