X-men: First Class Reader Insert

(Y/n), Raven, and Charles are foster siblings with superpowers. Them, along with new friends, are going to stop world war three. Highest rankings: #2 xmenfirstclass, #1 siblingrelationship, #37 x-men, #37 charlesxavier, #66 xmen, #460 sister, #766 adventure, #760 readerinsert