Jump back cursor in same position using :bpre

I using bufferline to move between buffer. For example, a.vim is in line 20, I use :bnext to jump to next buffer is b.vim go to line 100 to copy some lines, then :bpre to comeback at line 20 and paste. I don’t want to use <C-o>. Is there any default :set to apply this behavior? Thanks for helping.

What do you not want, what would be what you want?

Sorry I forgot the syntax.