Is Uchi no Otōto-domo ga Sumimasen based on a book?

Common questions

Is Uchi no Otōto-domo ga Sumimasen based on a book?

Yes. Uchi no Otōto-domo ga Sumimasen is based on the manga Please Excuse My Younger Brothers (2020).

Who wrote the book Uchi no Otōto-domo ga Sumimasen is based on?

The source is Please Excuse My Younger Brothers.

Should I read the book before watching?

If you like knowing the full story and characters first, read Please Excuse My Younger Brothers before you watch. Adaptations often change or cut plotlines, so the book is a different experience even if you've seen the movie.