Honestly I cant bring myself to like Anna especially when compared to Nightingale so far. All Anna does is essentially be a plot tool and be Ms Smarty pants and outside of that the romance with the MC really doesnt work.
@Arkos Well Anna is basically put in the background almost the whole story, doing all engineering things. So just assume the romance happens off screen. I don't read VN so not sure how it goes there though.
hmm Anna is the driver i would say
without her he couldnt cut the Metal as he wanted.
Progress would be way slower but hmm with such a huge rooster of characters it is hard to have them all meaningfull