at first, Nicole does try to learn transformation magic. She messes up at first and becomes a 16-year-old version of herself, but eventually she learns how to turn into Reid for a short period of time. Her secret does eventually come out, although no conflict was mentioned because of this - the last part of the story has her face off against the same type of dragon who killed Reid in his past life, but this time she manages to become victorious. She accumulates a harem as well, and the last chapter is them all rolling Nicole into the bedroom while Maria hopes she can give her some grandchildren. You might want to check with /a/ for more info.