So, I've read the first two chapters so far, and I think it was interesting because you a created an interesting character with Mercy - she is tough, funny, she knows how to deal with things, and of course, she is also a mystery, probably carrying around a bag full with issues :-) I like that.
Read the story now
The beginning was a bit bumpy, I think you were more 'telling than showing'. One thing was excellent though: your spaghetti idea. I think that is a very good example of how to bring a character to life. This might sound weird now, but by including the spaghettis, you reveal at the same time a lot about Mercy's character (i.e. she is funny, sarcastic and hard-boiled). Chapter two became really good. Excellent pacing, mood of the situation, I really liked it!