Meet Riza Kristen. She has no clue what her real name is. Riza was the name given to her by her 'twin' Royal Janae Mustang. One day while Riza was watching fullmetal alchemist they were fighting for their lives against monsters that escaped into their world. They could only save Janae's twin sisters. Riza pushed them through the tv and lost her arm following them. she convinced truth to let the others to go through unharmed in exchange for her leg. i suck at discriptions the story is much better than it sounds.