Its a story about the deepest feelings of Annie and Eren who changes from a good person to be the devil

Takes place in a time were Germany and Russia are at war. Both Nations hate each other with all there humanity and will stop at nothing to destroy the other. In this story Annie is a Russian spy who fell in love with the son of a German Military Leader Grisha Yeager. His son is Eren Yeager which is in the KSM. Will Eren and Annie's love be allowed or will it all fall to the point where there is no more ? They are both basically young adults if you are wondering ok.