[Columbine]

Originally Posted by YuriTokoro

Please help me and suggest some.
I’d like to read a book which is narrated from the first-person standpoint.
Not young or casual. (I prefer polite English.)
A lot of conversations as much as possible.
A book which has been translated into Japanese (this is a must), and has its audio book will be great. (I want to listen to pronunciation.)

Thanks a lot!

There aren't so many fictional books written in the first person, but you could try "Life of Pi" by Yann Martel. Amazon.co.jp： パイの物語: ヤン マーテル, Yann Martel, 唐沢 則幸: 本. There's some big sections of dialogue, but also some large sections of narrative and the story is really interesting.

Otherwise, the other book I have that mostly ticks all your criteria is Long Way Down/ Long Way Around by Ewan McGregor and Charley Boorman. It's not fiction, but it's written in the first person and has lots of conversation. It's a little more colloquial, however, with shorter sentences and a number of idioms (because the authors aren't professional writers). In a way, though, it makes the english a little more real than normal book-english.

I'll have a think and see if I can't think of any more.