I don't get all the hate for Nick... Even if the first part of the story is "forced" onto the player, it merely exists to flesh out the MC background. I don't see people complaining that the MC's parents are almost always dead or absent!

I mean, the MC doesn't exist in a vacuum. What part of its former life is displayed via flashbacks or intro, it's up to the author.
Speaking about Nick, I do hope it will be possible to convince her to remove her tattoos or go back to her natural hair colour. Those tattoos are a memento of a bad time in her life, so it kind of make sense that getting rid of them could be a sort of closure.
PS: another game on my "to support" list...