I really like what you have so far. I’m curious to see how the MC will go forward after being rescued from their mother. The concept of Medallions intrigues me and Dani seems like fun. Sidenote: the nickname “Dani” is usually given to girls (short for Danielle) while “Danny” is for boys (short for Daniel). It doesn’t really matter as a person can call themself whatever they want, but I just assumed Dani was female until I got the option to choose the gender.
One thing that really did bother me was the Sydney romance. The MC is a sheltered eighteen year old who went through some serious physical and pyschological trauma. Sydney is supposed to be the MC’s caretaker/therapist and is described as having “more than a couple years” on them. Sydney is in a position of trust over a vulnerable individual so any sort romance between them between them just seems wrong to me.
Now of course, I’m just basing this off the first chapter and I have no idea how you plan on developing the romance. I’m just voicing my concerns.