Are Daisuke from B Gata H Kei and Daisuke from Tsuki ga Kirei the same character?
>very similar traits
>both passionate about literature
>one is a college student who works part time in a bookshop, the other runs a bookshop
>both give advice to the male character
Except for their different surnames you can't actually unsee that, it could be that the first is the second's younger self?